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Synology / NAS enclosures
A four-bay diskless NAS with ECC memory, two 2.5GbE ports and two M.2 NVMe slots. A compatible expansion enclosure is a separate purchase.
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Check supported drive form factors and capacity limits for this exact model.
Review due. Check the current source before buying.
A shared model name can cover different factory memory configurations.
4 GB DDR4 ECC SODIMM, one installed module.
Review due. Check the current source before buying.
Do not add port speeds together or treat this as measured throughput.
Fastest single supplied port, not measured file-transfer speed.
Review due. Check the current source before buying.
Main unit, accessory pack, power adapter/cord and two LAN cables. User-storage drives, extra memory and DX525 expansion enclosure are separate.
Review due. Check the current source before buying.
Select: DS925+ standard 4 GB ECC diskless package; follow the manufacturer’s US buying route.
View at Synology — Synology DS925+ — diskless 4 GB ECC US package; opens in a new tabThe link may open several packages. Check current price and availability with the seller. Opens in a new tab.
These packages exclude user-storage drives. Operating-system boot storage is not included data-drive capacity. Drives, network equipment and software compatibility need separate checks.
Open a field explanation or source for its conditions.
| Compare the details | Synology DS925+ — diskless 4 GB ECC US package |
|---|---|
| US purchase package | DS925+ standard 4 GB ECC diskless package; follow the manufacturer’s US buying route. Main unit, accessory pack, power adapter/cord and two LAN cables. User-storage drives, extra memory and DX525 expansion enclosure are separate. Sources · 2026-09-12Synology: DiskStation DS925+ US specificationsChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Synology: DSM 7.3 drive-compatibility announcementChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Review due. Check the current source before buying. |
| External rating | |
Main drive baysBays for the main SATA storage drives, excluding separate M.2 slots. Check supported drive form factors and capacity limits for this exact model. | 4 baysSource · 2026-09-12Synology: DiskStation DS925+ US specificationsChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Review due. Check the current source before buying. |
Included data drivesUser-storage drives supplied in this purchase package. These diskless packages require separately purchased compatible drives. | 0 drivesBase diskless package; user-storage drives are separate.Source · 2026-09-12Synology: DiskStation DS925+ US specificationsChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Review due. Check the current source before buying. |
Supplied RAMInstalled system memory in the exact listed package. A shared model name can cover different factory memory configurations. | 4 GB4 GB DDR4 ECC SODIMM, one installed module.Source · 2026-09-12Synology: DiskStation DS925+ US specificationsChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Review due. Check the current source before buying. |
Official maximum RAMThe maximum memory stated by the manufacturer for the reviewed revision. This does not endorse unofficial upgrades or establish application performance. | 32 GB2 × 16 GB; multi-module configurations must use matching model numbers.Source · 2026-09-12Synology: DiskStation DS925+ US specificationsChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Review due. Check the current source before buying. |
Memory can be upgradedWhether the reviewed hardware revision has a documented memory upgrade path. Check socket layout, supported modules and any revision changes. | YesUse documented compatible memory and the exact hardware revision.Source · 2026-09-12Synology: DiskStation DS925+ US specificationsChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Review due. Check the current source before buying. |
Fastest Ethernet portHighest nominal speed of one supplied Ethernet port. Do not add port speeds together or treat this as measured throughput. | 2.5 Gb/sFastest single supplied port, not measured file-transfer speed.Source · 2026-09-12Synology: DiskStation DS925+ US specificationsChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Review due. Check the current source before buying. |
Supplied Ethernet portsNumber and nominal speed of the included Ethernet ports. Check your network and the software conditions for link aggregation or failover. | 2 × 2.5GbESource · 2026-09-12Synology: DiskStation DS925+ US specificationsChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Review due. Check the current source before buying. |
M.2 slotsBuilt-in M.2 storage slots where documented. Slot presence does not guarantee every drive or storage-pool use; check the compatibility list. | 2 slotsM.2 2280 NVMe. As checked 12 September 2026, M.2 storage pools and cache require drives on Synology’s compatibility list.Sources · 2026-09-12Synology: DiskStation DS925+ US specificationsChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Synology: DSM 7.3 drive-compatibility announcementChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Review due. Check the current source before buying. |
ProcessorThe processor identified for this hardware model. Processor identity alone does not predict application, transcoding or file-serving performance. | AMD Ryzen V1500BSource · 2026-09-12Synology: DiskStation DS925+ US specificationsChecked 2026-09-12. We reviewed the official page text on the check date. Checkout options were not verified.Review due. Check the current source before buying. |
| Questions to check before buying | As checked 12 September 2026, DSM 7.3 permits non-validated third-party SATA drive installation and pools on 2025 models. Check the current model-specific compatibility list before buying drives. M.2 cache and storage pools remain subject to Synology’s compatible-drive requirement. |
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