Synology RackStation RS3621RPxs NAS Rack (2U) Intel® Xeon® D-1531 8 GB DDR4 192 TB HDD DiskStation Manager Aluminium, Black

SKU
RS3621RPXS/192TB-HAT5300
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192TB, Intel Xeon D-1531, 2.2 GHz, 8 GB DDR4 ECC UDIMM, 2 x USB 3.2 Gen 1, 2 x Expansion, 2U, 4 x 1GbE RJ-45
More Information
Type NAS
Processor Intel Xeon
Ethernet ports 4
Storage drives installed Yes
SKU RS3621RPXS/192TB-HAT5300
EAN 5051868182341
Manufacturer Synology
Availability Y
Product Family RackStation
Safeguard your business assets
Synology RS3621RPxs is a powerful 12-bay storage server. Its 6-core processor enables compute-intensive services while its redundant power, ECC memory, and Btrfs file system safeguard mission-critical data. Capable of delivering 189,098 4K random read IOPS and 4,718 MB/s sequential read throughput1, it is ideal for small businesses.

Reliability first
Service continuity is at the core of the RS3621RPxs design.

Redundant power
Dual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans can be replaced without powering down the system.

Near-zero downtime
Synology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover.

Next-generation file system
Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots.

Customize to suit
The two built-in PCIe slots allow users to customize the RS3621RPxs to satisfy unique performance, networking, and storage requirements2.

10GbE ready
Support for 10GbE NICs expands the throughput of the unit by up to 5x times using link aggregation.

SSD cache3
Boost read/write IOPS by up to 16 times by enabling SSD cache via our Synology M.2 NVMe adapter cards and SNV3000 Series SSDs or by installing one or more 2.5” SAT5200 SSDs.

On-demand drive bays
Expand to 36 drive bays using two RX1217(RP) expansion units with minimal intervention.

Hyper Backup
A comprehensive backup and recovery solution for securing data stored on Synology servers. Backup data locally, to another Synology device, rsync server, or cloud-based storage such as Google Drive, Dropbox, S3-compatible destinations, and Synology C2. Deduplication4, integrity checks, and incremental transfer technology reduce bandwidth and storage used.

Snapshot Replication
Easily schedule flexible point-in-time backups of shared folders and iSCSI LUNs with an RPO as low as 5 minutes and recovery in seconds. Set up replication and failover to other Synology storage systems for fast RTOs and minimal service disruption.

Storage for virtualization
Synology iSCSI storage supports mainstream virtualization solutions with an easy management interface to enhance usability. VMware vSphere 6.5 and VAAI integration helps offload storage operations. Windows Offloaded Data Transfer (ODX) speeds up data transfer. OpenStack Cinder support turns your Synology NAS into a block-based storage component. Additionally, Synology Storage Console enables even more simplified storage provisioning and management options in VMware and Windows environments

Works best with Synology drives
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.
Storage
Total installed storage capacity192 TB
Online RAID migrationYes
Online RAID expansionYes
Storage drives installedYes
Installed storage drive typeHDD
Number of storage drives installed12
Supported storage drive typesHDD & SSD
Number of storage drives supported12
Storage drive interfaceSerial ATA II, Serial ATA III
Hot-swap drive baysYes
RAID supportYes
Supported file systemsBTRFS, Fat, HFS+, NTFS, exFAT, ext3, ext4
RAID levels0, 1, 5, 6, 10, F1, JBOD
Supported storage drive interfacesSerial ATA II, Serial ATA III
Storage drive sizes supported2.5,3.5"
Processor
Processor manufacturerIntel
Processor boost frequency2.7 GHz
CPU configuration (max)1
Conflict-Free processorYes
Processor frequency2.2 GHz
Processor familyIntel® Xeon®
Processor modelD-1531
Processor cores6
Memory
Internal memory typeDDR4
Internal memory8 GB
Maximum RAM supported64 GB
Memory slots4
Memory form factorUDIMM
ECCYes
Network
Ethernet LANYes
Wake-on-LAN readyYes
Supported network protocolsSMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
iSCSI supportYes
Ports & interfaces
USB portYes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity2
PCI Express x8 (Gen 3.x) slots2
Ethernet LAN (RJ-45) ports4
Hard drive
RAID supportYes
Supported file systemsBTRFS, Fat, HFS+, NTFS, exFAT, ext3, ext4
RAID levels0, 1, 5, 6, 10, F1, JBOD
Design
Cooling typeActive
Fan diameter8 cm
Drive bay lockingYes
Product colourAluminium, Black
Number of fans4 fan(s)
LED indicatorsHDD, Power
Chassis typeRack (2U)
Technical details
TypeNAS
Device classSmall & Medium Business
Backup functionYes
Backup featuresCloud, iSCSI LUN
Product colourAluminium, Black
Number of users4000 user(s)
Noise level50.2 dB
Multilingual supportYes
LED indicatorsHDD, Power
Chassis typeRack (2U)
Number of fans4 fan(s)
Sustainability complianceYes
Harmonized System (HS) code84714100
Compliance certificatesRoHS
Performance
Built-in iTunes serverYes
Built-in FTP serverYes
System logYes
Share folderSMB/NFS/AFP/FTP
Browser supportedChrome, Firefox, Edge, Internet Explorer, Safari
TypeNAS
Device classSmall & Medium Business
Backup functionYes
Backup featuresCloud, iSCSI LUN
On/off switchYes
Windows operating systems supportedYes
Mac operating systems supportedYes
Linux operating systems supportedYes
Web-based managementYes
Security algorithmsHTTPS, SSH, SSL/TLS
Reset buttonYes
Operating system installedDiskStation Manager
Number of users4000 user(s)
Noise level50.2 dB
Multilingual supportYes
Access Control List (ACL)Yes
Third-party supportYes
SnapshotYes
Cooling
Cooling typeActive
Fan diameter8 cm
Number of fans4 fan(s)
Security
Drive bay lockingYes
Security algorithmsHTTPS, SSH, SSL/TLS
Access Control List (ACL)Yes
Software
Windows operating systems supportedYes
Mac operating systems supportedYes
Linux operating systems supportedYes
Operating system installedDiskStation Manager
Management features
On/off switchYes
Web-based managementYes
Reset buttonYes
Power
Power consumption (HDD standby)65.94 W
Power supply locationBuilt-in
Power supply unit (PSU) capacity500 W
AC input voltage100 - 240 V
AC input frequency50 - 60 Hz
Redundant power supply (RPS) supportYes
Power consumption (typical)140.01 W
Weight & dimensions
Width482 mm
Depth724 mm
Height88 mm
Packaging content
Cables includedAC
Power cables quantity2
Processor special features
Intel VT-x with Extended Page Tables (EPT)Yes
Intel Virtualization Technology for Directed I/O (VT-d)Yes
Intel Virtualization Technology (VT-x)Yes
Intel TSX-NI version1.00
Intel TSX-NIYes
Intel Trusted Execution TechnologyYes
Intel Secure Key Technology version1.00
Intel Enhanced Halt StateYes
Intel 64Yes
Idle StatesYes
Execute Disable BitYes
Enhanced Intel SpeedStep TechnologyYes
Embedded options availableNo
Sustainability
Sustainability complianceYes
System requirements
Windows operating systems supportedYes
Mac operating systems supportedYes
Linux operating systems supportedYes
Operational conditions
Storage temperature (T-T)-20 - 60 °C
Storage relative humidity (H-H)5 - 95%
Operating temperature (T-T)0 - 35 °C
Operating relative humidity (H-H)5 - 95%
Operating altitude0 - 5000 m
Certificates
CertificationFCC CE BSMI VCCI RCM EAC CCC KC UL
Logistics data
Harmonized System (HS) code84714100
Packaging data
Cables includedAC
Other features
CertificationFCC CE BSMI VCCI RCM EAC CCC KC UL
Compliance certificatesRoHS

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Description
Safeguard your business assets
Synology RS3621RPxs is a powerful 12-bay storage server. Its 6-core processor enables compute-intensive services while its redundant power, ECC memory, and Btrfs file system safeguard mission-critical data. Capable of delivering 189,098 4K random read IOPS and 4,718 MB/s sequential read throughput1, it is ideal for small businesses.

Reliability first
Service continuity is at the core of the RS3621RPxs design.

Redundant power
Dual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans can be replaced without powering down the system.

Near-zero downtime
Synology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover.

Next-generation file system
Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots.

Customize to suit
The two built-in PCIe slots allow users to customize the RS3621RPxs to satisfy unique performance, networking, and storage requirements2.

10GbE ready
Support for 10GbE NICs expands the throughput of the unit by up to 5x times using link aggregation.

SSD cache3
Boost read/write IOPS by up to 16 times by enabling SSD cache via our Synology M.2 NVMe adapter cards and SNV3000 Series SSDs or by installing one or more 2.5” SAT5200 SSDs.

On-demand drive bays
Expand to 36 drive bays using two RX1217(RP) expansion units with minimal intervention.

Hyper Backup
A comprehensive backup and recovery solution for securing data stored on Synology servers. Backup data locally, to another Synology device, rsync server, or cloud-based storage such as Google Drive, Dropbox, S3-compatible destinations, and Synology C2. Deduplication4, integrity checks, and incremental transfer technology reduce bandwidth and storage used.

Snapshot Replication
Easily schedule flexible point-in-time backups of shared folders and iSCSI LUNs with an RPO as low as 5 minutes and recovery in seconds. Set up replication and failover to other Synology storage systems for fast RTOs and minimal service disruption.

Storage for virtualization
Synology iSCSI storage supports mainstream virtualization solutions with an easy management interface to enhance usability. VMware vSphere 6.5 and VAAI integration helps offload storage operations. Windows Offloaded Data Transfer (ODX) speeds up data transfer. OpenStack Cinder support turns your Synology NAS into a block-based storage component. Additionally, Synology Storage Console enables even more simplified storage provisioning and management options in VMware and Windows environments

Works best with Synology drives
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.
ZFS-based, 24-bay U.2 NVMe all-flash storage built for high-performance and low-latency virtualized workloads, data centers, and 8K streams

The NVMe all-flash TS-h2490FU is designed for providing extreme performance with high cost-efficiency. Featuring 24 U.2 NVMe Gen 3 x4 SSD bays, the TS-h2490FU delivers up to 661K / 245K random read/write IOPS with ultra-low latency.

Build high-performance storage infrastructure for IOPS-demanding applications
Virtualization
Eliminates storage bottlenecks for unstructured data and I/O intensive workloads; ideal for server virtualization and virtual desktop infrastructure (VDI).

Data Centers
Delivers ultra-low latency and high IOPS performance, providing response times within microseconds for data centers that host significant business-critical systems and data.

Media and Entertainment (M&E) production
Satisfies smooth 4K/8K media streaming and post-production, empowering multimedia workflows with faster data transfer, access, and backup for boosted efficiency.

2nd Gen AMD EPYC™ processors and DDR4 ECC memory
The TS-h2490FU is armed with 2nd Gen AMD EPYC™ 7002 series processors (Rome). Based on the “Zen 2” architecture with cutting-edge 7nm process technology, up to 128 PCIe lanes of I/O are provided for 32Gb/s dedicated bandwidth per SSD. With DDR4 ECC memory that detects and corrects single-bit memory errors for higher reliability, the TS-h2490FU provides 8-channel modules and 16 Long-DIMM slots to fulfill memory-intensive workloads. Demonstrating immense computing power and multi-tasking capabilities, the TS-h2490FU is the ideal choice for uncompromising performance demands in HPC, virtualization, and hybrid/multi-cloud applications.

U.2 NVMe Gen 3 x4 All-Flash Storage Array
The 2U rackmount TS-h2490FU has 24 drive bays for U.2 NVMe Gen 3 x4 SSDs, with each individual SSD having 32Gb/s dedicated bandwidth for the utmost application response times. Coupled with powerful ZFS data deduction and SSD optimization technologies, the TS-h2490FU provides solid foundations for overcoming complexity and performance demands in today’s evolving data center workloads.

Empower high-speed data transfer with four 25GbE ports
The TS-h2490FU provides breakthrough network connectivity with two pre-installed dual-port 25GbE SFP28 SmartNICs* (that use the Broadcom NetXtreme®-E Series BCM57414, Mellanox® ConnectX®-4 Lx, or the same level SmartNIC). With failover and Port Trunking for up to 100Gb/s bandwidth, the TS-h2490FU empowers your organization with the bandwidth to tackle the most demanding applications, including data centers, virtualization, massive file transfer, high-speed backup/restoration, and multimedia transmission.

Leverage the M.2 PCIe NVMe SSD to U.2 Adapter
Install one or more QDA adapter in the TS-h2490FU to maximize PCIe bandwidth utilization in a cost-effective way by using M.2 PCIe NVMe SSD instead of the U.2 SSD for optimizing data-intensive applications. It can also boost IOPS performance when configuring SSD caching. Users can monitor drive health and manage SSD usage from the QTS Storage & Snapshots Manager. The M.2 SSD installed in the QDA adapter is hot swappable.

Multiple PCIe Gen 4 slots for flexible expansion
The TS-h2490FU is equipped with five PCIe Gen 4 slots. With twice the I/O performance of PCIe Gen 3, the TS-h2490FU can take advantage of many PCIe cards to expand application potential.

Robust hardware paralleled to boost all-flash NVMe performance
The TS-h2490FU features high-level hardware with an expandable architecture to provide businesses with high performance and low latency access. With a removable motherboard drawer design, IT staff can easily maintain the TS-h2490FU without needing to remove it from the rack.

ZFS-based QuTS hero operating system enhances NAS performance and data integrity
QuTS hero combines the app-based QTS with the 128-bit ZFS file system to provide flexible storage management, comprehensive data protection, and optimized performance to tackle the complexity and performance demands of modern IT. From storage management, virtualization, to collaborative media workflows, QuTS hero streamlines your business-critical tasks.

Data integrity is key
QuTS hero’s self-healing ensures data integrity and reliability. Write Once, Read Many (WORM) is also supported.

Data reduction improves storage efficiency and performance
Inline data deduplication, compression, and compaction reduce file size to conserve storage capacity and optimize performance.

Multi-level cache technology
Main memory read cache (L1 ARC), SSD second-level read cache (L2 ARC), and ZFS Intent Log (ZIL) for synchronous transactions with power fail protection are simultaneously supported to boost performance and security.

RAID Z enables robust data protection
Multiple RAID levels allow flexible capacity utilization. RAID Triple Parity and Triple Mirror deliver higher levels of data protection.

QSAL (QNAP SSD Antiwear Leveling) enhances data protection
RAID-level SSD lifespan is automatically and regularly detected to prevent simultaneous SSD failure, improving your data protection and system reliability.

App Center ecosystem extends NAS functionality
Apps for backup/sync, virtual machines/containers, content management, productivity, and more features can be used to expand the application potential of the TS-h2490FU.

Inline data deduplication, compression, and compaction improve SSD endurance
QuTS hero supports advanced block-based data reduction technologies (including inline data deduplication, compression, and compaction) to reduce file sizes, conserve storage capacity, and optimize performance. For example, if 20 virtual machines on a NAS are replicated using the same template, then storage space requirements for all 20 virtual machines can be reduced by up to 95%. Whether acting as primary or backup storage, the TS-h2490FU optimizes storage utilization to provide a reliable storage cornerstone in the Big Data era. All-flash solutions thus achieve higher cost efficiency while improving both random write performance and SSD lifespan.


More SSD performance and lifespan optimization technologies
Write Coalescing
Transforms all random writes to sequential writes along with reduced I/O, effectively increasing write performance in all-flash environments.

Pool Over-provisioning
Dedicated space can be flexibly reserved in an SSD storage pool to allow new data to be written into a complete block even if the pool is almost full, thus improving the performance of fragmented pools.

TRIM
Allows QuTS hero to inform SSDs to delete unneeded data blocks and process the deletion tasks during system idle times, meaning it does not have to wait for when new data is written to the block.

Real-time SnapSync ensures minimal RPO with real-time disaster recovery
Real-time SnapSync ensures that both the primary and secondary NAS maintain identical data. When data is written to the source, it is immediately written to the destination. If the primary NAS goes offline, IT staff can simply adjust the privilege settings of the secondary NAS to ensure continuous operations. SnapSync provides the strongest support for nonstop business operations and helps users to reduce the risk of data loss.

Snapshots multiply backup protection
Attain peace of mind with near-limitless, instant snapshots. Copy-on-write technology makes snapshot creation almost instantaneous without affecting ongoing data writing. Snapshot Replica replicates snapshot files to the backup NAS, simplifying data protection with version control.

HBS simplifies 3-2-1 backup plans
HBS centralizes backup, restoration, and synchronization for easily transferring data in the TS-h2490FU to another QNAP NAS, remote server, or cloud storage space. HBS supports QuDedup technology that eliminates redundant data at the source and makes multi-version backup faster.

All-in-one virtual machine and container hosting solution
You can count on Virtualization Station and Container Station for comprehensive virtualization support. Coupled with the Network & Virtual Switch app that boosts interoperability between virtual machines, containers, QNAP NAS, and other physical devices on the network, you can flexibly allocate physical and virtual network resources to simplify network deployment.

Virtualization Station
Run multiple Windows®, Linux®, UNIX®, and Android™ virtual machines and access them via a web browser or Virtual Network Computing (VNC). Businesses can run virtualized server applications on a single NAS without the need for additional physical servers.

Container Station
Experience LXC and Docker® lightweight virtualization technologies, download apps from the built-in Docker Hub Registry®, import and export containers, and create abundant microservices.

Single Root I/O Virtualization (SR-IOV)
By installing an SR-IOV compatible PCIe SmartNIC in the TS-h2490FU, you can allocate bandwidth resources from a physical network card directly to VMs. With traffic bypassing the Hypervisor vSwitch, it helps enhance I/O throughout and network efficiency, ensuring reliable VM applications and reduced CPU overheads.

License-free VMware® and Hyper-V backup appliance
With Hyper Data Protector, the TS-h2490FU becomes an agentless backup tool for unlimited VMware® vSphere and Microsoft® Hyper-V VM backup. Hyper Data Protector features incremental backup, global deduplication, backup scheduling and recovery compression. Hyper Data Protector also simultaneously backs up multiple VMs, providing you with a cost-effective and reliable disaster recovery plan, ensuring 24/7 operation of your services.

Move business data to the cloud and enjoy low latency access to cloud-based data
The TS-h2490FU perfectly integrates NAS with mainstream cloud services. By deploying cloud storage gateways and enabling local caching, organizations can seamlessly use the cloud for storage, backup, and data recovery with low-latency access. This greatly helps in realizing cost-effective, flexible and secure hybrid cloud applications.

HybridMount file-based cloud gateway
Flexibly expand storage capacity by connecting to cloud storage. You can leverage QuTS hero apps to manage and edit your cloud files or multimedia files. HybridMount is ideal for file server online collaboration and file-level data analysis.

VJBOD Cloud block-based cloud gateway
VJBOD Cloud supports streamlined NAS backup to object cloud storage. The block-based data transmission uploads random data and large files to the cloud in blocks, and only transmits block-based volume or LUN changes (such as addition, modification, or deletion). This is ideal for enterprise-level applications with large file transfer requirements, such as databases, VM volumes, and videos.

High-performance, reliable storage solution for virtualization
- Supports block-based iSCSI LUN as a high-performance, reliable, and affordable storage solution for VMware®, Microsoft® Hyper-V®, and Windows Server® 2019 virtualization environments.

- Supports VMware VAAI and Microsoft ODX to increase performance by offloading server loading for ESXi server and Hyper-V respectively, and supports QNAP vSphere Client plug-in with enhanced operational efficiency and management in virtualization applications.

Build an affordable Fibre Channel SAN environment
Common Fibre Channel Storage Area Networks (SAN) devices are often costly. By installing QNAP dual-port 16Gb/32Gb Fibre Channel expansion cards in the TS-h2490FU, you have more budget-friendly options to add a NAS to a SAN environment. You can set a Fibre Channel Target using the iSCSI & Fibre Channel app. Moreover, the LUN Masking and Port Binding features provide an additional layer of data security.

More productivity applications
Boxafe
Safeguard enterprise cloud data by backing up/syncing files, emails, calendars and contacts from Google™ Workspace and Microsoft® Office 365® to the TS-h2490FU.

Security Counselor
A security portal for checking weaknesses and receiving recommendations for enhancing NAS security. It also integrates anti-virus and anti-malware scanning software.

Qsirch
QNAP’s powerful, Google-like search tool helps you quickly find images, music, videos, documents, and emails by keywords, color, and more search conditions. It also supports Qfiling to perform one-time or automatic archival tasks based on your search criteria.

Build a high-density petabyte-scale data center with Seagate® Exos™ E series JBOD
QNAP and Seagate® join hands to assist you in overcoming the challenges of extreme data growth! The TS-h2490FU supports connecting a Seagate Exos E series JBOD, offering a competitive storage solution with unprecedented capacity, industry-leading storage density, and high reliability while also minimizing TCO by saving rack space. You can flexibly install one or more QDA-UMP adapters with IronWolf 525 M.2 NVMe SSDs in the TS-h2490FU to maximize PCIe bandwidth utilization in a cost-effective way by using M.2 SSD instead of U.2 SSD for optimizing data-intensive applications.
Built-in High Availability
Keep file sharing services, block storage, backups, and other office applications online with automatic minute-level failover. Defend against operational disruptions with two independent and hot-swappable controllers operating in an active-passive configuration.

Made for demanding environments
The SA3400D is engineered to provide outstanding performance in both NAS and SAN storage roles. Its throughput and random I/O performance support efficient SMB and NFS file serving as well as a range of iSCSI and Fibre Channel block storage applications.

Consolidate your data infrastructure
Manage, protect, and share data with versatile business solutions. Empower team collaboration, sandbox applications, and provide VM storage on a unified platform.

Flexible options to meet changing needs
Flexibly scale storage capacity, optimize I/O performance, and meet different network needs with a range of expansion options.

Add storage capacity on demand
Scale server capacity up to 576 TB7 when your data storage needs increase by adding two 12-bay RXD1219sas expansion units.

Boost network and I/O performance
Add 10/25GbE connectivity with optional add-in cards.8 Create all-flash storage volumes with SAS SSD for lightening-fast I/O, or boost IOPS and cut down latency on HDD volumes by creating SAS SSD read/write cache volumes.

Performance backed by Synology drives
Engineered to handle intensive workloads, Synology hard drives consistently deliver top-grade performance.
Accelerate your business operations
The 12-bay RS3621xs+ is capable of delivering over 238K 4K random read IOPS and 5,819 MB/s sequential read throughput1— a true enterprise powerhouse. With full power supply redundancy, an 8-core processor, ECC memory, advanced snapshot technology, and file self-healing, the RS3621xs+ provides a reliable foundation to any data-driven business.

Storage you can trust
The RS3621xs+ keeps your data protected while you concentrate on delivering the best results to your customers — even when disaster strikes.
Redundant power
Dual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans allow them to be replaced without powering down the system.
Maximize service availability
Synology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover.
Next-generation file system
Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots.

Tailored to your business
The RS3621xs+ includes two PCIe slots for performance, networking, and storage upgrades enabling it to adapt to any business environment.
Double bandwidth
Upgrade network bandwidth in minutes by 2x or more with Synology’s range of 10GbE NICs.
SSD cache
Boost read/write IOPS by up to 16 times by enabling SSD cache with our Synology M.2 NVMe adapter cards and SNV3500 SSDs or by installing one or more 2.5” SAT5200 SSDs.
Storage expansion
Quickly and easily scale up to 36 drives with two RX1217(RP) expansion units.

License-free data protection
Hyper Backup
A comprehensive backup and recovery solution for securing data stored on Synology servers. Backup data locally, to another Synology device, rsync server, or cloud-based storage such as Google Drive, Dropbox, S3-compatible destinations, and Synology C2. Deduplication, integrity checks, and incremental transfer technology reduce bandwidth and storage used.
Snapshot Replication
Easily schedule flexible point-in-time backups of shared folders and iSCSI LUNs with an RPO as low as 5 minutes and recovery in seconds. Set up replication and failover to other Synology storage systems for fast RTOs and minimal service disruption.
Active Backup Suite
Enables administrators to easily backup the entire IT infrastructure to their NAS, including Windows & Linux workstations and servers, file servers, VMware and Hyper-V virtual machines, and Microsoft 365 and Google Workspace accounts. Backups benefit from deduplication, multiversioning, and optimizations to reduce bandwidth and storage used.

Storage for virtualization
Synology iSCSI storage supports mainstream virtualization solutions with an easy management interface to enhance usability. VMware vSphere 6.5 and VAAI integration helps offload storage operations. Windows Offloaded Data Transfer (ODX) speeds up data transfer. OpenStack Cinder support turns your Synology NAS into a block-based storage component. Additionally, Synology Storage Console enables even more simplified storage provisioning and management options in VMware and Windows environments.

Complete surveillance solution
Synology Surveillance Station transforms the RS3621xs+ into a feature-packed Network Video Recorder solution. Support for up to 90 IP cameras and video analytics such as motion detection, no idle zone, foreign object detection, and anomaly detection cater to the most common surveillance scenarios.
Secure and private
AES-256 encryption adds additional security to the locally-stored footage.
Access from anywhere, anytime
Access recordings and live streams whenever you want using a web browser, desktop client, or the DS cam mobile app.
Real-time alerts
Email, SMS, or push notifications alert you when incidents occur or predefined conditions are met.

Works best with Synology drives
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.

Powered by Synology DiskStation Manager
The RS3621xs+ runs Synology DiskStation Manager (DSM), the web-based operating system with applications and services designed specifically for businesses.
Central Management System
Conveniently manage your fleet of Synology NAS from a centralized console.
Synology Drive
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
Collaboration Suite
Satisfy all team collaboration needs behind the safety of your own private cloud with Synology Office, Calendar, and Chat.
Virtual Machine Manager
Run various operating systems in isolated sandboxes. Seamlessly clone, store, and migrate virtual machines.
Security
Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions.
Public Cloud Integration
Back up and synchronize data easily between public cloud accounts and your NAS.
Accelerate your business operations
The 12-bay RS3621xs+ is capable of delivering over 238K 4K random read IOPS and 5,819 MB/s sequential read throughput1— a true enterprise powerhouse. With full power supply redundancy, an 8-core processor, ECC memory, advanced snapshot technology, and file self-healing, the RS3621xs+ provides a reliable foundation to any data-driven business.

Storage you can trust
The RS3621xs+ keeps your data protected while you concentrate on delivering the best results to your customers — even when disaster strikes.
Redundant power
Dual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans allow them to be replaced without powering down the system.
Maximize service availability
Synology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover.
Next-generation file system
Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots.

Tailored to your business
The RS3621xs+ includes two PCIe slots for performance, networking, and storage upgrades enabling it to adapt to any business environment.
Double bandwidth
Upgrade network bandwidth in minutes by 2x or more with Synology’s range of 10GbE NICs.
SSD cache
Boost read/write IOPS by up to 16 times by enabling SSD cache with our Synology M.2 NVMe adapter cards and SNV3500 SSDs or by installing one or more 2.5” SAT5200 SSDs.
Storage expansion
Quickly and easily scale up to 36 drives with two RX1217(RP) expansion units.

License-free data protection
Hyper Backup
A comprehensive backup and recovery solution for securing data stored on Synology servers. Backup data locally, to another Synology device, rsync server, or cloud-based storage such as Google Drive, Dropbox, S3-compatible destinations, and Synology C2. Deduplication, integrity checks, and incremental transfer technology reduce bandwidth and storage used.
Snapshot Replication
Easily schedule flexible point-in-time backups of shared folders and iSCSI LUNs with an RPO as low as 5 minutes and recovery in seconds. Set up replication and failover to other Synology storage systems for fast RTOs and minimal service disruption.
Active Backup Suite
Enables administrators to easily backup the entire IT infrastructure to their NAS, including Windows & Linux workstations and servers, file servers, VMware and Hyper-V virtual machines, and Microsoft 365 and Google Workspace accounts. Backups benefit from deduplication, multiversioning, and optimizations to reduce bandwidth and storage used.

Storage for virtualization
Synology iSCSI storage supports mainstream virtualization solutions with an easy management interface to enhance usability. VMware vSphere 6.5 and VAAI integration helps offload storage operations. Windows Offloaded Data Transfer (ODX) speeds up data transfer. OpenStack Cinder support turns your Synology NAS into a block-based storage component. Additionally, Synology Storage Console enables even more simplified storage provisioning and management options in VMware and Windows environments.

Complete surveillance solution
Synology Surveillance Station transforms the RS3621xs+ into a feature-packed Network Video Recorder solution. Support for up to 90 IP cameras and video analytics such as motion detection, no idle zone, foreign object detection, and anomaly detection cater to the most common surveillance scenarios.
Secure and private
AES-256 encryption adds additional security to the locally-stored footage.
Access from anywhere, anytime
Access recordings and live streams whenever you want using a web browser, desktop client, or the DS cam mobile app.
Real-time alerts
Email, SMS, or push notifications alert you when incidents occur or predefined conditions are met.

Works best with Synology drives
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.

Powered by Synology DiskStation Manager
The RS3621xs+ runs Synology DiskStation Manager (DSM), the web-based operating system with applications and services designed specifically for businesses.
Central Management System
Conveniently manage your fleet of Synology NAS from a centralized console.
Synology Drive
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
Collaboration Suite
Satisfy all team collaboration needs behind the safety of your own private cloud with Synology Office, Calendar, and Chat.
Virtual Machine Manager
Run various operating systems in isolated sandboxes. Seamlessly clone, store, and migrate virtual machines.
Security
Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions.
Public Cloud Integration
Back up and synchronize data easily between public cloud accounts and your NAS.
Versatile and scalable storage
Synology RS2821RP+ is a 3U 16-bay storage server designed to accommodate a diverse set of business requirements. Scalable to 28 drives, the unit provides powerful backup and restoration functionality for the SMB sector. It delivers 2,200 MB/s sequential read and 105K 4K random read performance, and can be upgraded with SSD cache and 10/25Gb Ethernet options.

High performance storage for anything
Over 105K/59K random read/write IOPS and up to 2,220/1,164 MB/s sequential read/write throughput ensure ample performance for demanding workloads.

Built for reliability
Redundant power
Reduce the possibility of power disruptions on a single distribution channel or PDU adversely impacting data and service availability.

Near-zero downtime
Pair two identical devices with Synology High Availability and enable automatic minute-level failover between both devices in the event one server fails.

Data integrity and protection
ECC memory prevents data corruption, while the Btrfs file system brings higher reliability, snapshot technology, and simplified data protection.

Customize to suit
Easily adapt the RS2821RP+ to any business environment by adding faster networking, local SSD cache, or storage capacity.
10/25GbE ready
Support for 10/25GbE NICs lets you boost server throughput up to five times using Link Aggregation (bonding).
SSD cache
Boost read/write IOPS over HDD-only arrays by up to 16 times or more with NVMe or SATA
On-demand drive bays
Expand to 28 drive bays with one RX1217(RP) expansion unit

License-free backup solutions
Hyper Backup
Back up files, iSCSI LUNs, installed applications, and system configurations to destinations including Synology C2 Storage, public cloud platforms, USB devices, file servers, local folders, or other Synology NAS.
Set and forget backup tasks with regular schedules, enhance security with fine-grained user permissions and encryption, keep backup sizes small with built-in deduplication, and restore data flexibly with multi-versioning.

Snapshot Replication
Snapshot Replication enables flexible point-in-time snapshots of shared folders, and virtual machines with an RPO as low as 5 minutes and recovery within seconds.

Active Backup Suite
Securely back up Windows clients and servers, Microsoft 365 and Google Workspace accounts, file servers, and VMware and Hyper-V virtual machines with the Active Backup Suite.
Leverage built-in deduplication technology to reduce backup sizes and multi-versioning to allow flexible restoration.

Serving remote workforces
Keep your remote workforce connected with powerful out-of-the-box solutions for collaboration, file sharing, and communication.

Synology Drive
Host your own private cloud behind the safety of your NAS with 100% data ownership and no subscription fees.

Synology Office
Create documents, spreadsheets, and slides in a multi-user environment. Real-time collaboration and automatic saving make remote work sessions a breeze.

Synology Chat
Chat and collaborate with colleagues using secure end-to-end encryption on with mobile, desktop, and browser clients.

Storage for virtualization
DSM streamlines provisioning for and management of virtual machines with full certification for VMware® vSphere™, Microsoft® Hyper-V®, Citrix® XenServer™, and OpenStack virtualization environments.
Synology Storage Console for VMware or Windows platforms lets you manage storage directly from your hypervisor. VMware VAAI integration and Windows ODX help offload storage operations and speed up data transfer.

Works best with Synology drives
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.

Powered by Synology DiskStation Manager
The web-based DiskStation Manager (DSM) operating system supports a host of native productivity and management solutions.
Central Management System
Conveniently manage your fleet of Synology NAS from a centralized console.
Synology Drive
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
Collaboration Suite
Satisfy all team collaboration needs behind the safety of your own private cloud with Synology Office, Calendar, and Chat.
Virtual Machine Manager
Run various operating systems in isolated sandboxes. Seamlessly clone, store, and migrate virtual machines.
Security
Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions.
Surveillance
Protect your home or business with intelligent monitoring and video management tools.
Short Description
192TB, Intel Xeon D-1531, 2.2 GHz, 8 GB DDR4 ECC UDIMM, 2 x USB 3.2 Gen 1, 2 x Expansion, 2U, 4 x 1GbE RJ-45
24 x 2.5", AMD EPYC 7302P, 128 GB RDIMM DDR4 ECC, 5GB Flash, LAN, 2 x 1100W, 100-240V, 88.3 × 480.97 × 510.23 mm, 15.2 kg
12-Bay 3.5", 2x GbE/1x 10GbE, Intel Xeon D-1541, 8GB RAM, RPSU, SAS, 2U
144TB, 2U, Intel Xeon D-1541 (8x 2.1GHz), 8GB DDR4, 12x 2.5"/3.5", 4x 1GbE RJ-45, 2x 10GbE RJ-45, 2x USB 3.2 Gen1
144TB, 2U, Intel Xeon D-1541 (8x 2.1GHz), 8GB DDR4, 12x 2.5"/3.5", 4x 1GbE RJ-45, 2x 10GbE RJ-45, 2x USB 3.2 Gen1
192TB, 3U, AMD Ryzen V1500B (4x 2.2GHz), 4GB DDR4, 16x 2.5"/3.5" SATA, 4x RJ-45, 2x USB 3.2 Gen1
Manufacturer
Synology
QNAP
Synology
Synology
Synology
Synology