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Synology RackStation® RS4826xs+ 12-Bay NAS Server

2U 12-bay rack NAS server ready for the petabyte: eight-core Xeon D-1739, 16 GB ECC expandable to 96 GB, 1 PB volumes and expansion to 48 drives. Dual 10 GbE, redundant power supply, out-of-band management. Drives not included.

  • Eight-core, sixteen-thread Intel Xeon D-1739, up to 3.5 GHz
  • 16 GB of DDR4 ECC RDIMM memory, expandable to 96 GB
  • Over 6,200 MB/s sequential read and 3,700 MB/s sequential write
  • 12 SATA bays for 3.5- and 2.5-inch drives, drives sold separately
  • Expandable to 48 drives and 1,152 TB raw with three RX1225RP units
  • Volumes up to 1 PB in RAID 6, with 64 GB of memory
  • 2 x 10 GbE RJ-45 ports and 1 out-of-band management port
  • Two redundant 550 W power supplies
  • 2 PCIe 4.0 x8 slots: 25 GbE, Fibre Channel or M.2 cache
  • Up to 65,536 snapshots and 10,240 local users
  • Up to 125 IP cameras, 2 licences included
  • 2U rack, optional RKS-02 sliding rails
Ref.: RS4826XS+
98 544,00 DHincl. VAT

Configuration · Synology RackStation xs+

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Manufacturer's datasheetView the PDF · 1,8 Mo — downloadable

Product overview

Rack NAS server for data moving to the petabyte scale: 12 bays in 2U, eight-core Xeon and expansion to 48 drives.
Processor: Intel Xeon D-1739, 8 cores and 16 threads
Memory: 16 GB DDR4 ECC RDIMM, up to 96 GB
Expansion: up to 48 bays with three RX1225RP
Network: 2 x 10 GbE ports and out-of-band management port
Upgrade: 2 PCIe Gen4 x8 slots
Power: 2 x 550 W redundant units
One step above the RS3626xs in the same chassis: more cores, more memory, more drives.

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Technical specifications

Technical specifications
ProcessorIntel Xeon D-1739
Processor details8 cores, 16 threads, 64-bit architecture
Surveillance cameras125 IP cameras maximum, 2 licences included
Hardware encryptionYes (hardware encryption engine)
Installed RAM16 GB DDR4 ECC RDIMM (1 x 16 GB)
Maximum RAM96 GB (6 x 16 GB)
Operating systemSynology DiskStation Manager (DSM)
RAIDRAID F1, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Typical power consumption155.24 W (access)
Standby power consumption76.15 W (drive hibernation)
Interfaces2 x USB 3.2 Gen 1, 3 x Mini-SAS HD expansion ports
Network ports2 x RJ-45 10 GbE, 1 out-of-band management port
Frequency3.0 GHz (3.5 GHz Turbo)
RAM slots6 slots
RAM typeDDR4 ECC RDIMM
Hard drive type3.5-inch SATA HDD, 2.5-inch SATA SSD
Hot-swappableYes
Storage bays12 bays (up to 48 with three RX1225RP expansion units)
M.2 NVMe slotsNone built in; NVMe SSD cache possible with an M2D20 or E10M20-T1 card in a PCIe slot
Supplied storageNo drives supplied
Expansion slots2 PCIe Gen4 x8 slots (x8 link)
Power supply2 redundant internal PSUs, 550 W, 100-240 V
Technical specifications (continued)
Weight14.5 kg
Dimensions88 x 482 x 724 mm (H x W x D)
Box contentsMain unit, accessory pack, 2 C13 to C14 power cables, front bezel
Operating temperature0 °C to 35 °C
Storage temperature-20 °C to 60 °C
File systemInternal: Btrfs — External: Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT
Sharing protocolsSMB, AFP, NFS, FTP, WebDAV, Rsync
Rack height2U (optional RKS-02 sliding rails)
CertificationsFCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS, UL
Fan4 fans (80 x 80 mm), easily replaceable
Network protocolsSMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, Kerberised NFS sessions, iSCSI, Fibre Channel, HTTP, HTTPS, FTP, SNMP, LDAP, CalDAV
Noise level46.3 dB(A)
Operating humidity8% to 80% RH
Form factorRack mount
Drive bays12 bays
Built-in M.2 slotsNo
Port speed10 Gbps (10G)
Drives includedNo
Redundant power supplyYes
NAS processorIntel Xeon
Warranty5 years

Specific references

MPNRS4826xs+

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Under Law 09-08, you have the right to access, rectify and object to the processing of your personal data. This processing has been authorised by the CNDP under no. D-CE-389/2015. Learn more

Frequently asked questions about this product

Are drives included with the RS4826xs+?
No, the RS4826xs+ comes without drives: its 12 bays take 3.5-inch SATA hard drives or 2.5-inch SATA SSDs, from the Enterprise HAT5300 series and the SAT5200 SSDs that Synology lists for it. With 24 TB drives, it provides 288 TB raw on its own and 1,152 TB with three expansion units.
What is the difference between the RS4826xs+ and the RS3626xs?
Same 2U 12-bay chassis, but the RS4826xs+ goes one step further: eight-core Xeon D-1739 instead of six cores, 16 GB of RDIMM memory expandable to 96 GB instead of 8 GB expandable to 48 GB, expansion to 48 drives instead of 36, and 1 PB volumes. It also supports 65,536 snapshots per system versus 4,096.
Can the RS4826xs+ create 1 PB volumes?
Yes, on two conditions: 64 GB of installed memory and a storage pool in RAID 6. Otherwise, a volume tops out at 200 TB with 32 GB of memory, and at 108 TB below that. The server ships with 16 GB and 6 slots, each taking a 16 GB RDIMM module (part number D4ER02-16G).
Does the RS4826xs+ have M.2 slots for SSD cache?
Not internally: NVMe cache is added with a card in one of the two PCIe 4.0 x8 slots, the M2D20 for two M.2 SSDs, or the E10M20-T1, which adds a 10 GbE port. The second slot remains free for a 25 GbE E25G30-F2 card or a Fibre Channel adapter.
Can the RS4826xs+ be managed remotely?
Yes, through its dedicated out-of-band management port: turning the server back on, checking its critical logs or diagnosing a fault is done remotely, even when powered off. The two 10 GbE RJ-45 ports stay dedicated to data and can be aggregated to combine throughput or fail over automatically if a link drops.
Which rail kit does the RS4826xs+ need?
The Synology RKS-02 sliding rail kit, sold separately, for a 4-post 19-inch rack. The RS4826xs+ takes up 2U for 724 mm of depth and weighs 14.5 kg without drives: check the usable depth of the cabinet, and leave room at the back for the Mini-SAS HD expansion cables.
Is the RS4826xs+ noisy?
Yes, it is built for a server room: its four 80 mm fans reach 46.3 dB(A) in operation. It draws 155.24 W in access and 76.15 W when the drives are in hibernation, powered by two redundant 550 W units. It operates at an ambient temperature between 0 °C and 35 °C.

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