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Synology · XS+ and XS series

Synology RS4826xs+

The Synology RS4826xs+ is a 12-bay rackmount NAS built around the Intel Xeon D-1739 processor. Installed memory is 16 GB DDR4 ECC RDIMM, expandable to 96 GB. Networking is 2 x 10GbE RJ-45, 1 x out-of-band management. With expansion units it grows to 48 drive bays.

Drive bays
12
Processor
Intel Xeon D-1739
Memory
16 GB DDR4 ECC RDIMM
Network
10GbE

Who it suits

A rackmount unit suits an office with a server rack or a comms room. The redundant power supply keeps it running if one supply fails. With this many bays it is typically used as central storage or as the backup target for a whole company.

Synology RS4826xs+ specifications

ProcessorIntel Xeon D-1739, 8-core, 3.0 GHz (burst 3.5 GHz)
Memory installed16 GB DDR4 ECC RDIMM
Maximum memory96 GB (16 GB x 6)
Drive bays12 x 3.5" SATA HDD or 2.5" SATA SSD
Maximum bays with expansion48
Network ports2 x 10GbE RJ-45, 1 x out-of-band management
USB ports2 x USB 3.2 Gen 1
Expansion slots2 x Gen4 x8 slots (x8 link)
HDMInone
Form factorRackmount 2U
Size (H × W × D)88 x 482 x 724 mm
Weight14.5 kg
Power consumption155.24 W access / 76.15 W HDD hibernation
Noise level46.3 dB(A)
Power supply550 W redundant
Warranty5 years

Specifications from Synology's published data, checked October 2026. See the RS4826xs+ on Synology's website. Confirm details before ordering.

Usable capacity by RAID level

How much space the RS4826xs+ gives with typical drive sizes.

RAID level12 × 4 TB12 × 8 TB12 × 12 TB12 × 16 TB12 × 20 TB
RAID 544 TB88 TB132 TB176 TB220 TB
RAID 640 TB80 TB120 TB160 TB200 TB
RAID 1024 TB48 TB72 TB96 TB120 TB

Space is shown before formatting; expect about 10% less in use. Larger systems are often split into more than one RAID group.

What we do with it

  • Storage

    NAS supply and installation

    A right-sized Synology, QNAP or Asustor unit with the drives, RAID level and network setup your office needs.

  • Backup

    Automatic backup setup

    Scheduled backups of PCs, servers and shared folders to the NAS, with an off-site copy, so nobody has to remember to do it.

  • Versions

    Ransomware protection for NAS

    Point-in-time snapshots and protected copies that let you roll a folder back to how it was before an attack or a mistake.

  • Move

    Data migration

    We move your files, users and permissions from old servers, external drives or an ageing NAS.

Questions about the RS4826xs+

How much usable storage does the RS4826xs+ give?

It depends on the drives and the RAID level. With 12 × 8 TB drives in RAID 5 you get about 88 TB before formatting. The capacity table on this page shows other combinations.

Can the RS4826xs+ be expanded?

Yes. With Synology expansion units it supports up to 48 drive bays in total.

Can the memory in the RS4826xs+ be upgraded?

Yes. It ships with 16 GB DDR4 ECC RDIMM and Synology lists a maximum of 96 GB.

Does the RS4826xs+ have 10GbE?

Yes. Its network ports are 2 x 10GbE RJ-45, 1 x out-of-band management.

What warranty does the RS4826xs+ have?

Synology lists a hardware warranty of 5 years for this model.

Do you supply the RS4826xs+ with drives and installation?

Yes. We supply it with compatible drives fitted, configured and tested, and can install it at your office. Ask for a quote on this page.

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12-bay alternatives from other brands

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