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Synology DS925+

Synology DiskStation DS925+ four-bay NAS photographed from the front and right side on a wooden desk.

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DS925+, 4 GB ECC memory, diskless

Processor:
AMD Ryzen V1500B, 4 cores / 8 threads, 2.2 GHz
Integrated graphics (AMD):
None: AMD's V1000 family brief lists 0 GPU compute units for the V1500B
Memory:
4 GB DDR4 ECC SODIMM; 2 slots; up to 32 GB (16 GB x 2)

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Package details

Model: DS925+

The four-bay DS925+ comes with 4 GB DDR4 ECC memory, which supports memory error correction. Storage drives are bought separately.

Condition:
Confirm new or reconditioned on the listing
Quantity:
Confirm package quantity on the listing

Important limit: Highest power draw of the three Synology picks (Synology figures)

How many units?

Confirm condition, quantity and included accessories on the retailer’s listing.

Compare versions and packages

Specifications checked November 2, 2026. Full product details

A NAS. Then the drives.

Your files, your hardwareLook inside the box

What will your NAS do?

Choose the job first. Then check drives and the network.

NAS job

Choose a job to reveal the hardware trade-off.

Synology DS925+: 4 SATA bays, empty in the diskless enclosure.ENCLOSURE / SATA DRIVE PLANEmptyBayEmptyBayEmptyBayEmptyBay4 SATA bays · drives are purchased separately
SATA bay diagram · schematic, not physical scale2 separate M.2 slots; excluded from this SATA plan.

Empty bays do not store files. The enclosure and the drives are separate purchases. Check the maker’s drive and firmware compatibility list.

Selected enclosureKnow what is included

Synology DS925+

AMD Ryzen V1500B

✓ NAS enclosureDrives sold separately
SATA bays
4
Installed RAM
4 GB
Fastest Ethernet
2.5 Gbps

Choose the job

The enclosure is only the beginning.

Look at the drive bays, then check the software and network your job needs.

The trap to avoid

Bay count does not tell you whether any drives are included. Match the exact enclosure or bundle.

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Source specs & exact version

Synology DiskStation DS925+ 4-Bay NAS

DS925+, 4 GB ECC memory, diskless

Recorded model: DS925+

Specifications checked 2026-11-02.

Processor
AMD Ryzen V1500B, 4 cores / 8 threads, 2.2 GHz
Integrated graphics (AMD)
None: AMD's V1000 family brief lists 0 GPU compute units for the V1500B
Memory
4 GB DDR4 ECC SODIMM; 2 slots; up to 32 GB (16 GB x 2)
Drive bays
4x 3.5-inch SATA HDD or 2.5-inch SATA SSD, plus 2x M.2 2280 NVMe SSD slots
Network
2x 2.5GbE
Third-party drives (Synology, DSM 7.3)
Synology's 2025 Plus models running DSM 7.3 accept third-party drives for installation and storage pools; M.2 storage pools and cache still need drives on Synology's compatibility list
Volume capacity qualification
Maximum single volume: 108 TB, or 200 TB with at least 32 GB of memory. Actual pool and volume limits depend on drives, bay count and RAID; filesystem and metadata reduce usable capacity.

Raw capacity is before RAID and formatting. The example does not establish drive compatibility.

Drive planning and software explained →

Photo credit: manufacturer image source ↗

Specifications explain hardware limits. No performance tests are claimed.

Size and placement

Size and placement

Size and weight
166 x 199 x 223 mm; 2.26 kg
Manufacturer specifications

Synology DiskStation DS925+ 4-Bay NAS

A four-bay Synology NAS with an AMD Ryzen V1500B, two 2.5GbE ports, ECC memory and two M.2 NVMe slots.

Which version should you buy?

Selected package: DS925+, 4 GB ECC memory, diskless.

Selected package

  • DS925+ diskless, ECC memory

    This page

    Model: DS925+

    What differs
    The four-bay DS925+ comes with 4 GB DDR4 ECC memory, which supports memory error correction. Storage drives are bought separately.
    Best for
    Users who want ECC memory and will choose their own drives.
    Check price on Amazon

Related models and generations

These are different products. Check their specifications separately.

  • DS925neo+ diskless, non-ECC memory Model: DS925neo+

    The closely named sibling comes with 4 GB DDR4 non-ECC memory instead. The shared processor and bay count do not identify the memory variant.

    Users who do not need ECC memory and specifically want the neo model.

Purchase links appear where the exact offer is verified. Confirm the named model, quantity and accessories before ordering.

Watch out

  • DS925+ uses ECC memory; DS925neo+ uses non-ECC. Both have 4 GB, so capacity alone cannot identify the model.
  • Diskless means no storage drives. Drive-bundle listings need a separate check of disk models, count and capacity.

Why people pick it

  • Two 2.5GbE ports
  • ECC memory, expandable to 32 GB
  • Expands to nine drives with the DX525

Know before you buy

  • Highest power draw of the three Synology picks (Synology figures)
  • M.2 pools and cache need Synology-listed drives
  • No integrated graphics: AMD lists 0 GPU compute units for the V1500B

Full specifications

ProcessorAMD Ryzen V1500B, 4 cores / 8 threads, 2.2 GHz
Integrated graphics (AMD)None: AMD's V1000 family brief lists 0 GPU compute units for the V1500B
Memory4 GB DDR4 ECC SODIMM; 2 slots; up to 32 GB (16 GB x 2)
Drive bays4x 3.5-inch SATA HDD or 2.5-inch SATA SSD, plus 2x M.2 2280 NVMe SSD slots
ExpansionUp to 9 drives with one DX525 expansion unit (USB Type-C expansion port)
Network2x 2.5GbE
USB2x USB 3.2 Gen 1
Noise (Synology)20.5 dB(A)
Power use (Synology)37.91 W in access, 12.33 W with drives hibernating; 100 W power supply
Size and weight166 x 199 x 223 mm; 2.26 kg
Sibling modelDS925neo+: same platform with 4 GB non-ECC memory
Third-party drives (Synology, DSM 7.3)Synology's 2025 Plus models running DSM 7.3 accept third-party drives for installation and storage pools; M.2 storage pools and cache still need drives on Synology's compatibility list
Warranty3-year limited hardware warranty
RAID supportSynology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6 and RAID 10.
Volume capacity qualificationMaximum single volume: 108 TB, or 200 TB with at least 32 GB of memory. Actual pool and volume limits depend on drives, bay count and RAID; filesystem and metadata reduce usable capacity.
Computer file backupSynology Drive Client can back up computer files to the NAS; Synology Drive Server must be installed on the NAS.
Synology Drive Client OS requirementsWindows 10 2004 or later, excluding Windows 10 on ARM and Windows Server editions; macOS 12 Monterey or later (64-bit); Ubuntu 20.04 or later (officially supported versions).

From manufacturer documentation, checked November 2, 2026. Spotted an error? Tell us.

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