$ 4,399.99

Synology Rackstation RS3621xs+ 12 bay diskless 2U rackmount NAS, Intel® Xeon® D-1541 8-core (16-thread) 2.1 GHz, Turbo Boost up to 2.7 GHz, 8 GB DDR4 ECC UDIMM (expandable up to 64 GB), 12 x 3.5" or 2.5" SATA HDD/SSD, 4 x 1GbE RJ-45, 2 x 10GbE RJ-45. 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.

Want to discuss a specific configuration? Call our NAS experts today – 407-960-4690

Product Features

  • Processor: Intel® Xeon® D-1541 8-core 2.1 GHz
  • System Memory: 8GB DDR4 ECC UDIMM (8GB x 1)
  • Maximum Memory: 64GB (16GB x 4)
  • RJ-45 10GbE LAN Port: 2 (with Link Aggregation / Failover support)
  • RJ-45 1GbE LAN Port: 4 (with Link Aggregation / Failover support)
  • Drive Compatibility: 3.5" SATA HDD, 2.5" SATA SSD
  • PCIe Expansion: 2 x Gen3 x8 slots (x8 link)
Availability: Usually ships within 1 - 3 Business Days for diskless. Configured units take longer.
Sku: RS3621xs+
RS3621xs+
Synology
MPN: RS3621xs+

Powerful storage solution

The Synology RackStation RS3621xs+ is a powerful 12-bay 2U storage solution with built-in redundant power. Engineered to deliver high throughput and robust data protection, its 8-core processor and built-in dual 10GbE ports enable it to handle even the most demanding of workloads in modern business environments. DiskStation Manager (DSM) provides comprehensive software solutions covering file management, data protection, surveillance, collaboration, virtualization and more.

Download Datasheet

  • High Performance
    Up to 238,273 random read IOPS and 5,819 MB/s sequential read performance
  • Powerful Compute
    Host multiple compute-intensive services with its 8-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

Built to Handle Intensive Workloads

Synology RackStation RS3621xs+ is built to deliver exceptional performance, flexibility, and scalability to meet the requirements of businesses.
  • Up to 238,273 4K random read IOPS and 5,819 MB/s sequential read performance for demanding workloads
  • Featuring 12 drive bays supporting both SATA HDD/SSD 2.5/3.5" drives5, expandable to 36 bays using two Synology RX1217(RP) expansion units
Optimized for Data Protection and Integrity

Powered by Synology DSM, our unified data management operating system, and built upon the Btrfs file system, data stored on the RS3621xs+ is safely guarded by modern data protection technologies.
  • Advanced snapshot technology provides schedulable and near-instantaneous data protection of shared folders and LUNs
  • File and folder-level data restoration enables restoration of specific files or folders
  • Flexible storage quota system helps admins effortlessly manage available space by specifying storage limits for shared folders
  • File self-healing detects and recovers corrupted files using mirrored metadata and RAID configurations
  • Inline compression compresses data before writing it to the drive, reducing write commands and optimizing storage space

Virtualization and Certified Storage

DSM streamlines the provisioning and management of storage for virtual machines (VM). Certified for VMware® vSphere™, Microsoft® Hyper-V®, Citrix® XenServer™, and OpenStack, it integrates with your virtualization platform of choice through iSCSI or NFS protocols. Install Synology Storage Console on VMware or Windows platforms for additional management convenience and functionality right in the hypervisor. Synology Virtual Machine Manager (VMM) is a hosted hypervisor for virtual machines running Windows®, Linux®, or virtualized versions of DSM with recovery mechanisms that ensure data protection on each VM6.

Data Backup Solutions for IT Infrastructure

  • Synology Active Backup Suite is a collection of license-free backup solutions built to protect Windows PCs and servers, VMs, other file servers, and cloud-based storage.
  • Active Backup for Business (ABB) consolidates backup tasks for physical and virtual environments and enables rapid restoration of files, entire physical machines, and VMs.
  • Active Backup for G Suite enables backup of Google Workspace data including Gmail, Contacts, Calendar, and Drive.
  • Active Backup for Microsoft 365 enables backup of Microsoft 365 data including OneDrive for Business, SharePoint Online, emails, contacts, and calendar.

On-Premises Collaboration

Synology's collaboration suite is a private SaaS for file sharing, concurrent document editing, emails, instant messaging, and more. By leveraging a private cloud infrastructure, it ensures data ownership while multilayered security enables secure multi-platform access.

  • Synology Drive allows data access, synchronization, on-demand file restoration, and backup.
  • Synology MailPlus7 provides a secure, reliable, and private email server.
  • Synology Chat brings teams together through instant multi-platform communication.
  • Synology Calendar helps teams keep track of what is most important with convenient calendar sharing and scheduling.

Private Video Surveillance

With Synology Surveillance Station, the RS3621xs+ becomes a powerful Network Video Recorder solution with support for up to 90 IP cameras.

  • 7,600+ supported camera models
  • ONVIF support to prevent vendor lock-in
  • Private, subscription-free storage of the recordings
  • Access through web browser, dedicated desktop clients, or mobile app
  • Event-based rules to trigger specific actions
  • Email, SMS, or push notification systems

RS3621xs+

CPU
CPU Model Intel® Xeon® D-1541 8-core (16-thread) 2.1 GHz, Turbo Boost up to 2.7 GHz
CPU Architecture 64-bit
CPU Frequency 8-Core 2.1 GHz
Hardware Encryption Engine (AES-NI)
Memory
System Memory 8 GB DDR4 ECC UDIMM
Memory Expandable up to expandable up to 64 GB
Storage
Drive Bay(s) 12
Maximum Drive Bays with Expansion Unit 36
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
Maximum Internal Raw Capacity 96 TB (8 TB HDD x 12) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units 288 TB (8 TB HDD x 36) (Capacity may vary by RAID types)
Maximum Single Volume Size
  • 200 TB (32GB RAM required, for RAID 5 or RAID 6 groups only)
  • 108 TB
Hot Swappable Drive
External Ports
USB 3.2 Port 2
Expansion Port 2 x Expansion ports (Infiniband)
File System
Internal Drives
  • Btrfs
  • EXT4
External Drives
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
Notes exFAT Access is purchased separately in Package Center.
Appearance
Size (Height x Width x Depth) 88 x 482 x 724 mm (with server handles)
Weight 14.5 kg
Others
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
10GbE RJ-45 Port
2
Wake on LAN/WAN
PCIe Slots
  • 2 x 8-lane x8 slots
  • Supports network interface cards2 and M.2 NVMe SSD adapter cards for SSD cache
System Fans 4 x (80 x 80 x 32 mm)
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
Wireless Support (dongle)
Power Recovery
Noise Level* 40.5 dB(A)
Scheduled Power On/Off
Power Supply Unit / Adapter 500W
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 116.7 W (Access)
60.3 W (HDD Hibernation)
British Thermal Unit 398.19 BTU/hr (Access)
205.75 BTU/hr (HDD Hibernation)
Environment Temperature
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
Certification
  • FCC Class A
  • CE Class A
  • BSMI Class A
Warranty 5 Years
Notes
  • Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 1TB ST31000520AS hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%

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The Case for buying an Integrated NAS System from SimplyNAS

Buying a NAS doesn't have to be complicated or stressful. This may only occur at times when looking to buy a diskless NAS as the risk element of receiving a faulty NAS or drives are accentuated. Nothing wrong in buying a diskless NAS and adding your own drives, the savings made may offset the inconvenience of receiving faulty NAS/Drives and having to go deal with returns, or does it? The argument against buying a diskless and self-populating with drives is quite compelling.

Disk Drives:

  • We ensure all drives are compatible with the relevant manufacturer, model provide conformity with the relevant compatibility guidelines.
  • All our disk drives are sourced from manufacturer recommended distributors – we don't buy aftermarket drives or purchase on open grey markets.
  • All our disk drives are sourced from manufacturer recommended distributors – we don't buy aftermarket drives or purchase on open grey markets.
  • Our comprehensive batch rotation ensures customer avoid batch issues and thus promote reliability and longevity.
  • Our methodology for configuration, setting RAID and in-depth burn testing process for disk drives and NAS servers is unsurpassed and the small premium paid for this service is worth its weight in gold.

NAS Servers:

  • We are authorized partners for all the NAS servers we stock.
  • We only sell and support NAS solutions, as a specialist our knowledge is unsurpassable.
  • Our expertise within the technical arena for NAS servers, provides the glue for preventing our customers from making an incorrect buying decision, as we share our knowledge.
  • Our extensive and professional burn-testing service ensure the optimization and deployment of both NAS and Disk Drives is done to provide peace of mind and total integration.
  • Ready to use out of the box, no if's or buts.

Thinking of buying a NAS?

QNAP, Synology, QSAN and TerraMaster – Over fourteen Comprehensive years relationship culminating in our expertise of understanding all the NAS products, and skillfully combining performance, reliability and features to ensure our NAS experts are always at hand to help our customers optimize their storage needs.

At SimplyNAS we balance performance, reliability and compatibility to ensure customers get optimized NAS based disk solutions that perfectly match their Storage needs. All our pre-configured NAS systems are evenly balanced in the areas that really matter.
Call our NAS experts today at 407-960-4690

What is NASBIT?

NASBIT© is a Licensed trademark of SimplyNAS. The acronym stands for Network Attached Storage Burn in Testing. This term is used to describe the process of testing new Network Attached Storage (NAS) hardware and firmware for faults before putting it to use in a live environment. This is done by running 'Stress testing' software for a stipulated period of time often 24 to 48 hours, but longer if needed.

When we receive an order for a NAS system pre-installed with disk drives it's prepared and configured with RAID followed by burn testing to ensure the entire system undergoes a thorough examination thus ensuring the server passes all tests to the highest standards set by us. Should the system hardware or any associated components fail at any point of the testing cycle the system is pulled and returned back as faulty our relevant vendor partner, the process seems simple but setting it up is far from easy.

Hard Disk Drives

All Hard disk drives are pre-tested prior to integration; the smallest of faults be it tolerable within industry standards are classified by us as faults, the hard drive is rejected and eliminated from the process and again returned back to source as a D.O.A. (dead on arrival). We continue to select drives from different batches, so as to eliminate any bad batches that may have been produced during manufacturing.

One integrated the drives are put through a vigorous routine that includes stress testing, including temperature tests and a host of read, writes to ensure the drive platters are stressed to the nth degree.

Memory

First, when the new server is turned on, we boot off of the network, and proceed to run the memory test that takes its sweet time, almost 10-12 hours dependent on manufacturer and model.

RAID

The appropriate RAID level is set and the system awaits completion of RAID synchronization. Once completed the NAS server undergoes numerous re-boots and a deletion of original RAID and a final re-build of RAID level again.

Why is NAS Burn in Testing (NASBIT©) necessary?

If within the designated time span the NAS servers are still running and with zero faults, it is considered suitable for rolling out to our customers. If there is a failure of any kind the systems is replaced with a new one, including hard drives and the process starts again, until the NAS servers passes with ZERO faults.

You would normally expect that this level of testing would be completed by the hardware manufacturers and so these tests shouldn't show up any faults. In our experience of testing hundreds of machines we do find faults, and we do send systems back.

The reason it is so important to perform this level of testing on NAS servers is that the uptime demands are so high. The slightest faults will cause outages and downtime. Once a NAS server is deployed, never again will you have the opportunity to take it offline and perform such detailed testing. Even if it were to crash, there is always a demand that it be put back online as quickly as possible, not left offline whilst thorough diagnostics are completed.

Always remember this is hardware and failures can and will occur even after burn testing has been carried, that is a fact of life we cannot avoid, but we do try and eliminate some of the hassle factor with testing. Thank you for buying from us, we truly appreciate your custom.


NOT AVAILABLE ON DISKLESS UNITS - ONLY FOR SYSTEMS PRECONFIGURED WITH HARD DISK DRIVES
Copyright 2020 by SimplyNAS all rights reserved. Federal copyright law prohibits unauthorized reproduction by any means and imposes fines up to $25,000 for violation.

We try our best to get orders shipped as quickly as possible and if something is not in stock at our FL warehouse, we can ship directly from our suppliers usually within 1 - 2 business days, if not the same day. However, due to the current situation with the Coronavirus, some manufacturers are experiencing stock constraints, shipping delays due to warehouse closures, delays in customs or other unforseen circumstances which can sometimes delay an order as stock levels can change hourly. We understand that your order may be urgent, so if you want to check if something is in stock before you place your order, please call us at 407-960-4690 during our normal business hours of 9-6PM EST. We also try to be transparent on the site with availability and shipping times. We do sometimes make mistakes and greatly appreciate your understanding if this occurs. Please allow some grace and patience as we work through the difficulties and challenges of communicating with our suppliers to keep up with supply changes.

So when can I expect a shipping notification for my order?

  • Diskless orders that are in stock will ship same day if placed before 2pm.
  • Diskless units that are not in stock we will ship directly from our suppliers warehouses. This could delay shipping by 1 - 3 business days.
  • Configured systems are considered special order. This means that they are not already pre-built and ready to ship when you place an order. When you purchase a configured system from us it will not ship out for at least 2 - 3 business days due to the time it takes to pick, assemble, test, RAID and prepare your order for shipment. If we do not have one of the components on the build, that will further delay shipment as we have to wait for stock to come to us. You will receive updates for the order as it goes into testing.

When will my card be charged for an order?

We do not immediately charge your credit card when you submit an order, instead a temporary hold is placed on your card for the amount of the purchase. If everything is in stock, we will charge your card and process you order for building or shipment. Should there be a delay of some sort, we will notify you by email with the ETA and ask for approval to charge your card and process your order. Please be advised that we cannot allocate stock to you without prepayment. So, if you approve the ETA, we will immediately charge your card so that we can secure the stock from our suppliers. Once this charge occurs, any cancellation will incur a 3% fee.

Security and Payment Verification Requests

We take customer security very seriously as fraud and chargebacks are costly. In order to protect you and keep our costs to a minimum, we may ask you to verify your identity when you place an order. If your billing and shipping differ, or if the billing and shipping parties differ and we can't veryify you as a legitimate business, we will send a request by email with a link, asking you to upload documentation for us. We understand that this may make some people nervous, but you are sending your files to the same secured server as your payment and no one can access the files except for the staff who verify them. Your files are purged from the server within 120 days of payment date. As we cannot physically verify your identity when you place an order, this is the only way for us to accomplish this so we ask that you complete the verification as we won't be able to process your order until this step is completed.

We know you have many choices of where to buy from and we truly appreciate you choosing SimplyNAS as your storage supplier.