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Synology RackStation RS3621RPxs
High-performance data management solution designed for business-oriented needs

Synology Products
Synology RackStation
Synology RackStation RS3621RPxs 12 Bay NAS
#RS3621RPxs
Our Price: $3,399.99
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96TB Bundle
Synology RackStation RS3621RPxs (12 bay) with Exos 7E8 HDD 512E/4kn SATA Hard Drive (QTY 12x8TB) 96TB Capacity
#RS-Exos-79
Our Price: $6,343.00
120TB Bundle
Synology RackStation RS3621RPxs (12 bay) with Exos X10 HDD 512E SATA Hard Drive (QTY 12x10TB) 120TB Capacity
#RS-Exos-80
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Synology RackStation RS3621RPxs (12 bay) with Exos X14 HDD 512E/4KN SATA Hard Drive (QTY 12x12TB) 144TB Capacity
#RS-Exos-81
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Synology RackStation RS3621RPxs (12 bay) with Exos X16 HDD 512E/4KN SATA Hard Drive (QTY 12x14TB) 168TB Capacity
#RS-Exos-82
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192TB Bundle
Synology RackStation RS3621RPxs (12 bay) with Exos X16 HDD 512E SATA Hard Drive (QTY 12x16TB) 192TB Capacity
#RS-Exos-83
Our Price: $8,410.00

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Overview:

The Synology RackStation RS3621RPxs is a powerful 12-bay 2U storage solution with built-in redundant power. Engineered to deliver high throughput and robust data protection, its 6-core processor enables it to handle the demanding workloads of modern business environments. DiskStation Manager (DSM) provides comprehensive software solutions covering file management, data protection, surveillance, collaboration, virtualization and more.

  • Powerful Performance
    Up to 189,098 random read IOPS and 4,718 MB/s sequential read performance
  • Powerful Compute
    Host multiple compute-intensive services with its 6-core Intel® processor
  • Upgradability
    Two PCIe expansion slots allow for M.2 NVMe cache adapters and high-bandwidth network cards
  • Redundant Power
    Ensure business continuity with two redundant power supplies
  • On-demand Scalability
    Supports up to 36 drive bays using two RX1217(RP)
  • Warranty
    Comes with Synology's 5-year warranty

CPU

Intel Xeon D-1531 6-core 2.2 GHz


Throughput

4,718 MB/s seq. read 189,098 4K random read IOPS

Expandability

Expandability

Dual PCIe slots for 10GbE or NVMe cache


Scalability

Up to 36 drive bays with RX1217(RP)


Features:


Built for reliability

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.

Built for reliability

Customize to suit

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

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

Keep disaster at bay

Hyper Backup
A comprehensive backup and recovery solution for added data protection. Create backup destinations locally, on another Synology device, rsync servers, or cloud-based destinations, such as Google Drive, Dropbox, S3-compatible destinations, and Synology C2 Storage, a dedicated backup destination for Synology devices. Deduplication, integrity checks, and incremental transfer technology reduce bandwidth and storage use.

Snapshot Replication
Easily schedule flexible point-in-time backups of shared folders and 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.

Maximize data availability

Backup your entire IT infrastructure

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.

Protect your entire IT infrastructure


Fully certified storage virtualization solutions

Synology iSCSI storage fully supports mainstream virtualization solutions to enhance work efficiency with an easy management interface. VMware vSphere 6 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.

Fully certified storage virtualization solutions

Powerful built-in surveillance functionality

Synology Surveillance Station transforms the RS3621RPxs into a feature-packed Network Video Recorder solution. Support for up to 75 IP cameras5 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 keeps locally-stored footage secure.
  • 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.

Powered by Synology DiskStation Manager

The RS3621RPxs runs Synology DiskStation Manager (DSM), the web-based operating system with applications and services designed specifically for businesses.

Central Management System

Central Management System

Conveniently manage your fleet of Synology NAS from a centralized console.

Snapshot Replication

Synology Drive

Instantly access your NAS files across multiple devices whenever you want, wherever you are.

Security

Collaboration Suite

Satisfy all team collaboration needs behind the safety of your own private cloud with Synology Office, Calendar, and Chat.

Virtual Machine Manager

Virtual Machine Manager

Run various operating systems in isolated sandboxes. Seamlessly clone, store, and migrate virtual machines.

Security

Security

Secure data with comprehensive built-in security tools to protect your devices against evolving threats.

Public Cloud Integration

Public Cloud Integration

Back up and synchronize data easily between public cloud accounts and your NAS.



Works best with Synology drives

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

  • SATA: 3.5” HDD HAT5300
  • NVMe: M.2 SSD SNV3000
  • SATA: 2.5” SSD SAT5200

5-year warranty

At Synology, we are committed to product innovation and quality. The RS3621RPxs is backed by a 5-year limited warranty that includes technical support and hardware replacement services to maximize your return on investment.


Specifications:

  1. Power Button & Indicator
  2. Alert Off Button
  3. Drive Trays
  4. Drive Status Indicator
  5. Power Ports
  6. PSU Indicators & Alert Off Buttons
  7. PSU Fans
  8. Console Port
  9. 1GbE RJ-45 Ports
  10. USB 3.2 Ports
  11. Expansion Ports
  12. PCIe Expansion Slots
  13. Reset Button
RackStation RS3621RPxs Hardware Specifications:
Hardware Specifications
CPU Intel Xeon D-1531 6-core (12-thread) 2.2 GHz, Turbo Boost up to 2.7 GHz
Hardware encryption engine Yes (AES-NI)
Memory 8 GB DDR4 ECC UDIMM (expandable up to 64 GB)
Compatible drive type
  • 12 x 3.5" or 2.5" SATA HDD/SSD (drives not included)
  • Only drives listed on the compatibility list can be used to create storage pools
  • Only Synology SAT5200 2.5" or Synology SNV3500 series SSDs (sold reparately) can be used to create SSD caches
Hot swappable drive Yes
External port
  • 2 x USB 3.2 Gen 1 ports
  • 2 x Expansion ports (Infiniband)
Form factor Rackmount 2U
Size (Height x Width x Depth) 88 x 482 x 724 mm (with server handles)
Weight 14.5 kg
LAN port 4 x 1GbE RJ-45
Wake on LAN/WAN Yes
PCIe 3.0 slot
  • 2 x 8-lane x8 slots
  • Supports network interface cards and M.2 NVMe SSD adapter cards for SSD cache
Scheduled power on/of Yes
System fan 4 x (80 x 80 x 32 mm)
AC input power voltage 100 V to 240 V AC
Power Frequency 50 to 60Hz, single phase
Operating Temperature 0°C to 35°C (32°F to 95°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH
Maximum operating altitude 5,000 m (16,400 ft)
General DSM specification
Networking protocol SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN, L2TP)
File system
  • Internal: Btrfs, ext4
  • External: Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT
Supported RAID type Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Storage management
  • Maximum single volume size: 108/200 TB
  • Maximum system snapshots: 65,536
  • Maximum internal volume: 128
SSD cache
  • Read/write cache support
  • 2.5" SATA SSD support
  • M.2 NVMe SSD support
File sharing capability
  • Maximum local user account: 16,000
  • Maximum local group: 512
  • Maximum shared folder: 512
  • Maximum concurrent SMB/NFS/AFP/FTP connection: 2,000
Privilege Windows Access Control List (ACL), application privileges
Directory service Windows AD integration: Domain users login via SMB/NFS/AFP/FTP/File Station, LDAP integration
Virtualization VMware vSphere 6.5, Microsoft Hyper-V, Citrix, OpenStack
Security Firewall, shared folder encryption, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let's Encrypt support, HTTPS (customizable cipher suite)
Supported client Windows 7 onwards, macOS 10.12 onwards
Supported browser Chrome, Firefox, Internet Explorer 11 onwards, Safari 11 onwards; Safari (iOS 11 onwards), Chrome (Android™ 6.0 onwards)
File Server & Synchronization
Drive Provide a universal portal to synchronize your files across various platforms, including Windows, macOS, Linux, Android™ and iOS. The built-in universal portal allows you to access data anytime and anywhere.
  • Maximum number of hosted files: 3,000,000
  • Maximum number of concurrent connections for PC clients: 1,800
File Station Provides virtual drives, remote folders, Windows ACL editor, compression/extraction of archived files, bandwidth control for specific users/groups, creation of sharing links, and transfer logs.
FTP Server Supports bandwidth control for TCP connections, custom FTP passive port ranges, anonymous FTP, FTP over TLS/SSL and SFTP protocols, network booting with TFTP and PXE support, and transfer logs.
Presto File Server Enables high-speed data transfer over WAN through the exclusive SITA technology between Synology NAS and desktop.
Cloud Sync Offers one or two-way synchronization with public cloud storage providers including Alibaba Cloud OSS, Amazon S3- compatible storage, Backblaze B2, Baidu Cloud, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible storage, Tencent COS, WebDAV servers and Yandex Disk.
Universal Search Enables global search of applications and files.
File Server & Synchronization
iSCSI Manager
  • Maximum iSCSI target: 256
  • Maximum iSCSI LUN: 512
  • iSCSI LUN clone/snapshot support
Virtual Machine Manager Deploy and run various virtual machines on Synology NAS, including Windows®, Linux®, or Virtual DSM
Data Protection & Backup Solution
Hyper Backup Support local backup, network backup, and data backup to public clouds
Backup tools
  • DSM configuration backup, macOS® Time Machine® support, Synology Drive Client desktop application
  • Shared folder sync supports a maximum of 32 tasks
Snapshot Replication
  • Maximum of shared folder snapshots: 1,024
  • Maximum of replication: 64
Synology High Availability Reduce service downtime by setting up two identical NAS into one high-availability cluster
Active Backup for G Suite Supports backup and restoration of Google Workspace My Drive, Team Drive, Gmail, Contacts, and Calendar.
Active Backup for Microsoft 365 Supports backup and restoration of Microsoft 365 OneDrive for Business, mail, contacts, and calendar.
Active Backup for Business An all-in-one backup solution designed for heterogeneous business IT environments. It enables IT admins to remotely manage and protect PCs, servers, and VMs from one centralized console.
Productivity & Collaboration
Collaboration tools Users can collaborate through the instant messaging service Synology Chat, the online editor Synology Office, and the scheduling assistant Synology Calendar.
  • Chat maximum user: 4,000
  • Office maximum user: 3,000
  • Calendar: support CalDAV and access via mobile devices
Note Station A note taking platform that supports rich text, note organization and versioning, encryption, sharing, media embedding, and attachments.
Synology MailPlus Server A secure, reliable, and private mail solution featuring high-availability, load balancing, security, and filtering.
Synology MailPlus An intuitive webmail interface for Synology MailPlus Server with customizable mail labels, filters, and user interface.
Multimedia
Moments A feature-rich photo management application that includes AI-powered album creation from facial and subject recognition, photo editing and sharing capabilities, similar photo detection for duplicate management, auto-editing functions such as color correction and angle adjustments, and auto-selection of the best shots. Mobile applications are available on iOS and Android™ devices.
Other packages Video Station, Photo Station, Audio Station, iTunes Server
Surveillance
Surveillance Station Maximum IP cameras: 75, for a total of 2,250 FPS at 720p (H.264)
All-in-One Server
Synology Directory Server Provide a flexible and cost-effective domain controller solution
Central Management System Provide a single interface to manage and monitor multiple Synology NAS
VPN Server
  • Maximum connection: 40
  • Supported VPN protocol: PPTP, OpenVPN™, L2TP/IPSec
Mail Server
  • Supported Mail Server protocols: POP3, SMTP, IMAP
  • LDAP/AD account support
Mail Station Webmail interface for Mail Server to receive emails from multiple POP3 mailboxes, customizable SMTP server
Web Station Virtual host (up to 30 websites), PHP/MariaDB, 3rd-party applications support
Other packages DNS Server, RADIUS Server, Log Center
Others
Storage Analyzer Displays volume and quota usage, total size of files, volume usage and trends based on past usage, size of shared folders, large files, most recently modified files, and least recently accessed files.
Antivirus Essential Provides full system scans, scheduled scans, white list customization, and auto-update of virus definitions
iOS/Android™ applications Synology Drive, Synology MailPlus, Synology Chat, Synology LiveCam, Moments, DS audio, DS photo, DS video, DS cam, DS file, DS finder, DS note
Other packages Additional 3rd-party packages available on Package Center
Certifications and Packaging
Environment safety RoHS compliant
Package content
  • 1 x RS3621RPxs main unit
  • 1 x Quick Installation Guide
  • 1 x Accessory pack
  • 2 x AC power cords
Optional accessories
  • DDR4 ECC UDIMM: D4EC-2666-16G/D4EC-2666-8G
  • RKS1317 Rail Kit
  • 10GbE Network Interface Cards: E10G18-T2/E10G18-T1/E10G17-F2
  • M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1
  • M.2 SSD Adapter Card: M2D20
  • M.2 NVMe SSDs: SNV35009
  • 2.5" SATA SSD: SAT5200
  • 3.5" SATA HDD: HAT5300
  • Expansion Unit: RX1217(RP)
  • VisualStation units: VS960HD, VS360HD
  • Surveillance Device License Pack
  • MailPlus License Pack
  • Virtual DSM License Pack
Warranty 5 Years

Documentation:

Download the Synology RackStation RS3621RPxs Datasheet  (PDF).

Pricing Notes:

Synology Products
Synology RackStation
Synology RackStation RS3621RPxs 12 Bay NAS
#RS3621RPxs
Our Price: $3,399.99
Synology Recommended Bundles
96TB Bundle
Synology RackStation RS3621RPxs (12 bay) with Exos 7E8 HDD 512E/4kn SATA Hard Drive (QTY 12x8TB) 96TB Capacity
#RS-Exos-79
Our Price: $6,343.00
120TB Bundle
Synology RackStation RS3621RPxs (12 bay) with Exos X10 HDD 512E SATA Hard Drive (QTY 12x10TB) 120TB Capacity
#RS-Exos-80
Our Price: $7,178.00
144TB Bundle
Synology RackStation RS3621RPxs (12 bay) with Exos X14 HDD 512E/4KN SATA Hard Drive (QTY 12x12TB) 144TB Capacity
#RS-Exos-81
Our Price: $7,389.00
168TB Bundle
Synology RackStation RS3621RPxs (12 bay) with Exos X16 HDD 512E/4KN SATA Hard Drive (QTY 12x14TB) 168TB Capacity
#RS-Exos-82
Our Price: $8,169.00
192TB Bundle
Synology RackStation RS3621RPxs (12 bay) with Exos X16 HDD 512E SATA Hard Drive (QTY 12x16TB) 192TB Capacity
#RS-Exos-83
Our Price: $8,410.00