Twelve bays in a 2U rack chassis, with redundant power and ECC memory expandable to 64 GB. Up to 4,718 MB/s in sequential read, and up to 36 drives with two expansion units. Drives not included.
Intel Xeon D-1531 6 cores, 2.2 GHz
ECC memory DDR4 8 GB, expandable to 64 GB
Redundant power supply: the service holds if one unit fails
RAID 1, 5, 6, 10 and RAID F1: work continues despite a drive failure
2.5" or 3.5" SATA drives sold separately
Up to 189,098 IOPS in 4K random read
Four 1 GbE network ports, which can be aggregated
Two PCIe slots for a 10/25 GbE card or an NVMe SSD cache
Expansion to 36 drives with two RX1217(RP) units
Hot-swappable drives
Virtual machines, workstation backup, private cloud and collaboration under DSM
The Synology RackStation® RS3621RPxs is a high-end NAS server designed for businesses. This 12-bay storage server features a 6-core, 2.2 GHz Intel® Xeon® D-1531 processor, delivering optimal performance for resource-intensive services. System memory is 8 GB of DDR4 ECC UDIMM, expandable up to 64 GB. This NAS server delivers impressive throughput of 189,098 IOPS in 4K random reads and 4,718 MB/s in sequential reads. It scales up to 36 bays with the RX1217(RP) expansion unit. Redundant power supplies, ECC memory and the Btrfs file system provide optimal data protection. The RS3621RPxs also offers two PCIe slots for adding 10GbE connectivity or NVMe cache as needed.
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Frequently asked questions about this product
Are drives included with the RS3621RPxs?
No, they are ordered separately. The twelve bays take 2.5" or 3.5" SATA drives. On a chassis of this size, drives account for a large share of the budget: cost them before you order, not after.
How far can the RS3621RPxs scale?
Up to 36 drives, by adding two RX1217RP or RX1217 expansion units, without major work on the existing setup. The base chassis is a twelve-bay 2U unit for a 19-inch rack.
What does the RS3621RPxs's redundant power supply protect against?
It covers two separate incidents: the failure of one power unit and the accidental removal of a power cord. The fans are also hot-swappable: they can be serviced without powering the system down.
What performance does the RS3621RPxs deliver?
4,718 MB/s sequential read and 189,098 IOPS 4K random read. The first figure describes large transfers, the second the ability to handle many small simultaneous requests — the latter is what matters for virtualisation.
What can go in the two PCIe slots?
A 10GbE network card, which can increase the unit's throughput up to fivefold through link aggregation, or an NVMe SSD cache via a Synology M.2 adapter card, rated as boosting read and write IOPS sixteenfold or more.
Does the RS3621RPxs offer a special RAID mode?
Yes, in addition to RAID 1, 5, 6 and 10, it supports RAID F1, designed for all-SSD volumes: it deliberately spreads wear unevenly so that the drives do not all reach the end of their life at the same time.
Which processor and memory power the RS3621RPxs?
A 6-core, 2.2 GHz Intel Xeon D-1531, backed by 8 GB of DDR4 ECC UDIMM, expandable to 64 GB. The Xeon and ECC are the two hallmarks of a NAS designed to host services, not just files.
Can this NAS host virtual machines?
Yes. Its iSCSI storage supports the main virtualisation solutions, with VMware vSphere and VAAI integration, Windows ODX to speed up transfers, and OpenStack Cinder for block storage.
How many cameras can the RS3621RPxs record?
Up to 75 IP cameras with Surveillance Station, with video analytics — motion, foreign object and anomaly detection. Footage stored locally is protected by AES-256 encryption.
Which backups can the RS3621RPxs handle?
Three licence-free tools: Hyper Backup to another Synology, an rsync server or cloud storage; Snapshot Replication, with restore points every 5 minutes; and Active Backup Suite, for Windows and Linux workstations, VMware, Hyper-V, Microsoft 365 and Google Workspace.
Is the Synology RS3621RPxs new and under warranty?
New, part number RS3621RPXS, in original Synology packaging. The invoice serves as the warranty document for 1 year. The datasheet lists all the specifications.
2U 12-bay rack NAS server for businesses: six-core Xeon D-1726, dual 10 GbE, redundant power supply and out-of-band management port. Over 6,300 MB/s sequential read, expandable to 36 drives. Drives not included.
•Six-core, twelve-thread Intel Xeon D-1726, up to 3.5 GHz
•8 GB of DDR4 ECC UDIMM memory, expandable to 48 GB
•Over 6,300 MB/s sequential read and 3,700 MB/s sequential write
1U 4-bay rack NAS for intensive workloads: six-core Xeon D-1726, 16 GB ECC, dual 10 GbE and redundant power supply in a single rack unit. Over 84,000 random write IOPS, expandable to 16 drives. Drives not included.
•Six-core, twelve-thread Intel Xeon D-1726, up to 3.5 GHz
•16 GB of DDR4 ECC RDIMM memory, expandable to 64 GB
Quad-core Ryzen, ECC memory expandable to 32 GB and two NVMe slots for cache: enough to take on heavy projects. The four Synology drives are already in the bays, expandable to nine.
Fitted with four Synology drives intended for continuous service, it is operational the first time it is switched on. Quad-core Intel processor, 1 GbE and 2.5 GbE ports, NVMe SSD cache possible.
2U 8-bay rack NAS server with two redundant 550 W power supplies: if one unit fails, the other takes over. Built-in NVMe SSD cache, 2 x 2.5 GbE ports and expansion to 12 drives with the RX426. Drives sold separately.
•Two redundant 550 W power supplies, two power cords included
With its four Synology drives already fitted, it starts out fault-tolerant from day one. AMD quad-core processor, ECC memory expandable to 32 GB, two 2.5 GbE ports and NVMe SSD cache.
2U 8-bay rack NAS server for SMEs and remote sites: 306.6 mm deep, 23.3 dB(A), built-in NVMe SSD cache without giving up a bay, and expansion to 12 drives with the RX426 unit. Drives sold separately.
The two Synology HAT3320 Plus series drives are already fitted, designed for continuous service. ECC memory expandable to 32 GB, a 2.5 GbE port and two NVMe slots to speed up access.
Four Synology HAT3300 drives included, built to run 24 hours a day: fault tolerance is in place from day one. Quad-core Intel processor, 1 GbE and 2.5 GbE ports, NVMe SSD cache possible.
Up to 1,181 MB/s sequential read and 1,180 MB/s sequential write, over two 2.5 GbE ports. Workstation backup, private cloud, virtual machines and video surveillance under DSM. Drives sold separately.
•AMD Ryzen V1500B quad-core 2.2 GHz
•8 GB of DDR4 ECC memory, expandable to 32 GB
•Drives sold separately
Over 84,000 random write IOPS
In stock
78 828 DHincl. VAT78 828,00 DHincl. VAT
Delivery everywhereDelivered all over Morocco
•4 Synology drives included, optimised for continuous operation
•4 drive bays, expandable to 9 with a DX525 unit
•AMD Ryzen V1500B quad-core 2.2 GHz
In stock
42 529 DHincl. VAT42 529,00 DHincl. VAT
Save 766 DHSave 766,00 DH incl. VAT
Delivery everywhereDelivered all over Morocco
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4 Synology drives included, optimised for continuous operation
2U 12-bay rack NAS server for businesses: six-core Xeon D-1726, dual 10 GbE, redundant power supply and out-of-band management port. Over 6,300 MB/s sequential read, expandable to 36 drives. Drives not included.
3 650 DHincl. VAT3 650,00 DHincl. VAT
Delivery everywhereDelivered all over Morocco
4 099 DHincl. VAT
4 099,00 DHincl. VAT
Delivery everywhereDelivered all over Morocco
•Six-core, twelve-thread Intel Xeon D-1726, up to 3.5 GHz
•8 GB of DDR4 ECC UDIMM memory, expandable to 48 GB
•Over 6,300 MB/s sequential read and 3,700 MB/s sequential write
A 1U rack format only 327.5 mm deep, to mount on two posts or on a wall. ECC memory, hot-swappable drives and 601/516 MB/s in sequential read/write. Drives not included.
•3.5" SATA drives or 2.5" SATA SSDs sold separately
1U 4-bay rack NAS for intensive workloads: six-core Xeon D-1726, 16 GB ECC, dual 10 GbE and redundant power supply in a single rack unit. Over 84,000 random write IOPS, expandable to 16 drives. Drives not included.
•Six-core, twelve-thread Intel Xeon D-1726, up to 3.5 GHz
•16 GB of DDR4 ECC RDIMM memory, expandable to 64 GB
Records up to 30 IP cameras, backs up office computers and centralises the team's files, with RAID 5 and 6 and hot-swappable drives. Drives not included.
•2.5" or 3.5" SATA drives sold separately
•RAID 5, 6, 10 and Synology Hybrid RAID: work carries on even if a drive fails
•Hot-swappable drives, without shutting the unit down
Power draw of 10.69 W and 19 dB(A): it stays on day and night without being noticed. A private cloud to back up your computer, find your files from the phone and stream your media at home.
2U 8-bay rack NAS server with two redundant 550 W power supplies: if one unit fails, the other takes over. Built-in NVMe SSD cache, 2 x 2.5 GbE ports and expansion to 12 drives with the RX426. Drives sold separately.
•Two redundant 550 W power supplies, two power cords included
Compact, it centralises an office's files and backs up workstations automatically. One 2.5 GbE port, two M.2 NVMe slots for cache and up to 80 TB of raw storage. Drives sold separately.
AMD dual-core up to 3.1 GHz and ECC memory expandable to 32 GB, with two M.2 NVMe slots that speed up access without using a bay. Expandable to seven drives. Drives sold separately.
A private cloud at home, with no subscription: up to 120 TB, photos sorted by AI and access from your phone anywhere. 8-core processor, 8 GB of memory and a 2.5GbE port. Drives not included.
2U 8-bay rack NAS server for SMEs and remote sites: 306.6 mm deep, 23.3 dB(A), built-in NVMe SSD cache without giving up a bay, and expansion to 12 drives with the RX426 unit. Drives sold separately.
