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Status: Currently sold
| Series | x25 Series |
|---|---|
| Bays | 8 |
| CPU | AMD Ryzen V1500B |
| Cores / Threads | 4 / 8 |
| RAM | 8 GB |
| CPU architecture | x86_64 |
| Support tier | full |
| Warranty (years) | 3 |
| RAM (max) | 32 GB |
| Memory slots | 2 |
| Memory generation | DDR4 |
| ECC memory | Supported |
| Memory module type | SODIMM |
| Replaceable memory | Replaceable |
| Network ports | 2x 2.5GbE |
| USB ports | 3x USB 3.2 Gen 1 |
| PCIe expansion | 1 × Gen3 x8 slot (x4 link) |
| M.2 slots | 2 |
| Drive bay types | 3.5" SATA HDD or 2.5" SATA SSD; M.2 2280 NVMe SSD |
| Hot-swappable bays | yes |
| CPU frequency (GHz) | 2.2 |
| Max bays with expansion unit | 18 |
| Power draw, active (W) | 60.1 |
| Power draw, hibernation (W) | 18.34 |
| Power supply (W) | 250 |
| Noise level (dBA) | 23.8 |
| Dimensions H x W x D (mm) | 166 x 343 x 243 |
| Weight (kg) | 6 |
| Largest certified configuration observed | 192 TB (8 x Synology HAT5320-24T, largest drive on the vendor HCL today; not a hardware limit) |
| Estimated cost to fill every bay with a certified 8 TB drive | about $5,225 new (Synology HAT3320-8T) / about $2,360 used (Synology HAT3310-8T) -- one observed eBay unit price incl. shipping x bays; quantity availability unverified |
| Estimated cost to fill every bay with a certified 16 TB drive | about $4,792 new (Synology HAT3310-16T) / about $4,449 used (Synology HAT5300-16T) -- one observed eBay unit price incl. shipping x bays; quantity availability unverified |
20 eBay listings checked Aug 8, 2026 · 19 new, 1 used (too few used listings to show a reliable used price)
Documents
Compatible network and expansion cards
Check the required OS, firmware, slot, bracket, and installation notes before buying.
| Component | Specifications | Evidence | Requirements and notes |
|---|---|---|---|
| Marvell FastLinQ QL41134HLCU | Connector: SFP+; Host interface: PCIe 3.0 x8; Ports: 4 x 10GbE | Officially certified Checked 2026-09-16 | Firmware: 8.34.15. DSM version requirement: 6.2-24922 or later version. (Only applicable to models with DSM.) |
| Synology E10G30-F2 | Connector: SFP+; Host interface: PCIe 3.0 x8; Ports: 2 x 10GbE | Officially certified Checked 2026-09-16 | DSM version requirement: 7.1.1-42962 Update 5 or later version. (Only applicable to models with DSM.); DSM Enterprise version requirement: 1.0-101178 or later version. (Only applicable to models with DSM Enterprise.); Remote Direct Memory Access (RDMA): Available on PAS7700 only. Applies to NFS over RDMA and NVMe over RDMA. |
| Synology E10G30-T1 | Connector: RJ45; Host interface: PCIe 3.0 x4; Ports: 1 x 10GbE | Officially certified Checked 2026-09-16 | DSM version requirement: 7.1.1-42962 Update 5 or later version. (Only applicable to models with DSM.) |
| Synology E10G30-T2 | Connector: RJ45; Host interface: PCIe 3.0 x8; Ports: 2 x 10GbE | Officially certified Checked 2026-09-16 | APM version requirement: 1.0-71430 or later version. (Only applicable to models with APM.); DSM version requirement: 7.1.1-42962 Update 5 or later version. (Only applicable to models with DSM.); DSM Enterprise version requirement: 1.0-101178 or later version. (Only applicable to models with DSM Enterprise.); Remote Direct Memory Access (RDMA): Available on PAS7700 only. Applies to NFS over RDMA and NVMe over RDMA. |
| Synology E25G30-F2 | Connector: SFP28; Host interface: PCIe 3.0 x8; Ports: 2 x 25GbE | Officially certified Checked 2026-09-16 | APM version requirement: 1.0-71430 or later version. (Only applicable to models with APM.); DSM version requirement: 7.1.1-42962 Update 5 or later version. (Only applicable to models with DSM.); DSM Enterprise version requirement: 1.0-101178 or later version. (Only applicable to models with DSM Enterprise.); Remote Direct Memory Access (RDMA): Available on PAS7700 only. Applies to NFS over RDMA and NVMe over RDMA.; For models with an AMD Ryzen V1000 CPU, DSM version 7.2.1-69057 or above is required. |
| Synology E10G18-T1 (EOL) | Connector: RJ45; Host interface: PCIe 3.0 x4; Ports: 1 x 10GbE | Officially certified Checked 2026-09-16 | DSM version requirement: 6.2-23739-2 onward (or 6.1-15284-2 onward with DSM 6.1). (Only applicable to models with DSM.) |
| Synology E10G21-F2 (EOL) | Connector: SFP+; Host interface: PCIe 3.0 x8; Ports: 2 x 10GbE | Officially certified Checked 2026-09-16 | DSM version requirement: 6.2.3-25426 or later version. (Only applicable to models with DSM.) |
Compatible Drives
39 drives certified on DS1825+'s official manufacturer compatibility list, sourced directly from Synology's own published Hardware Compatibility List. Each model links to that drive's own compatibility page.
39certified models
1drive brands
24 TBlargest listed
10with verified extra specs
Certified drives by capacity
0.48 TB4
0.96 TB4
1.92 TB4
2 TB1
3.84 TB4
4 TB3
6 TB1
7 TB1
8 TB6
12 TB3
16 TB3
18 TB1
20 TB3
24 TB1
Show all 39 certified drives
39 shown
| Brand | Model | Capacity | Type | Verified drive details | Recently observed offers | Status | Firmware |
|---|---|---|---|---|---|---|---|
| Synology | HAT5320-24T | 24.0 TB | 3.5" NAS HDD | - | New: $1,418.86 | Recommended | 1401 |
| Synology | HAT5310-20T | 20.0 TB | 3.5" NAS HDD | - | New: $873.06 · Used: $1,471.01 | Recommended | 1401 |
| Synology | HAT3320-20T | 20.0 TB | 3.5" NAS HDD | - | New: $836.49 | Recommended | 1401 |
| Synology | HAT5320-20T | 20.0 TB | 3.5" NAS HDD | - | New: $1,483.11 | Recommended | 1402 |
| Synology | HAT5310-18T | 18.0 TB | 3.5" NAS HDD | - | No recent verified offer | Recommended | 1401 |
| Synology | HAT5300-16T | 16.0 TB | 3.5" NAS HDD | - | New: $1,126.65 · Used: $556.14 | Recommended | 1403 |
| Synology | HAT5310-16T | 16.0 TB | 3.5" NAS HDD | - | New: $1,067.99 | Recommended | 1403 |
| Synology | HAT3310-16T | 16.0 TB | 3.5" NAS HDD | - | New: $599.00 | Recommended | 1402 |
| Synology | HAT3300-12T | 12.0 TB | 3.5" NAS HDD | - | No recent verified offer | Recommended | PL01 |
| Synology | HAT5300-12T | 12.0 TB | 3.5" NAS HDD | - | New: $589.99 · Used: $286.00 | Recommended | 1402 |
| Synology | HAT3310-12T | 12.0 TB | 3.5" NAS HDD | - | New: $530.49 | Recommended | 1402 |
| Synology | HAT3320-8T | 8.0 TB | 3.5" NAS HDD | - | New: $653.12 | Recommended | 1401 |
| Synology | HAT3310-8T | 8.0 TB | 3.5" NAS HDD | - | New: $4,338.04 · Used: $295.00 | Recommended | 1403 |
| Synology | HAT5310-8T | 8.0 TB | 3.5" NAS HDD | - | New: $1,077.87 · Used: $500.00 | Recommended | 1402 |
| Synology | HAT5320-8T | 8.0 TB | 3.5" NAS HDD | - | New: $702.17 | Recommended | 1401 |
| Synology | HAT3300-8T | 8.0 TB | 3.5" NAS HDD | - | No recent verified offer | Recommended | PL01 |
| Synology | HAT5300-8T | 8.0 TB | 3.5" NAS HDD | - | New: $1,046.00 · Used: $399.99 | Recommended | 1401 |
| Synology | SAT5210-7000G | 7.0 TB | 2.5" Enterprise SSD | 5-year warranty | New: $7,602.24 | Recommended | SCEMH5.0 |
| Synology | HAT3300-6T | 6.0 TB | 3.5" NAS HDD | - | New: $305.99 · Used: $211.00 | Recommended | PL01 |
| Synology | HAT3300-4T | 4.0 TB | 3.5" NAS HDD | - | New: $356.20 | Recommended | PL01 |
| Synology | HAT5300-4T | 4.0 TB | 3.5" NAS HDD | - | No recent verified offer | Recommended | 1403 |
| Synology | HAT5320-4T | 4.0 TB | 3.5" NAS HDD | - | New: $426.35 | Recommended | 1401 |
| Synology | SAT5220-3840G | 3.84 TB | 2.5" Enterprise SSD | - | No recent verified offer | Recommended | SCEMH5.0 |
| Synology | SAT5200-3840G | 3.84 TB | 2.5" Enterprise SSD | - | No recent verified offer | Recommended | SCEMJ2.1 |
| Synology | SAT5221-3840G | 3.84 TB | 2.5" Enterprise SSD | 5-year warranty | New: $975.00 | Recommended | SCEM16.3 |
| Synology | SAT5210-3840G | 3.84 TB | 2.5" Enterprise SSD | 5-year warranty | No recent verified offer | Recommended | SCEMH3.2 |
| Synology | HAT3300-2T | 2.0 TB | 3.5" NAS HDD | 3-year warranty | New: $578.21 · Used: $149.99 | Recommended | PL01 |
| Synology | SAT5210-1920G | 1.92 TB | 2.5" Enterprise SSD | 5-year warranty | New: $999.99 | Recommended | SCEMH3.2 |
| Synology | SAT5220-1920G | 1.92 TB | 2.5" Enterprise SSD | - | No recent verified offer | Recommended | SCEMH5.0 |
| Synology | SAT5221-1920G | 1.92 TB | 2.5" Enterprise SSD | 5-year warranty | New: $2,200.01 · Refurb: $2,304.00 | Recommended | SCEM16.3 |
| Synology | SAT5200-1920G | 1.92 TB | 2.5" Enterprise SSD | - | No recent verified offer | Recommended | SCEMJ2.1 |
| Synology | SAT5200-960G | 0.96 TB | 2.5" Enterprise SSD | - | Used: $75.00 | Recommended | SCEMJ2.1 |
| Synology | SAT5210-960G | 0.96 TB | 2.5" Enterprise SSD | 5-year warranty | No recent verified offer | Recommended | SCEMH3.2 |
| Synology | SAT5221-960G | 0.96 TB | 2.5" Enterprise SSD | 5-year warranty | New: $1,177.29 | Recommended | F3MN902 |
| Synology | SAT5220-960G | 0.96 TB | 2.5" Enterprise SSD | - | No recent verified offer | Recommended | SCEMH5.0 |
| Synology | SAT5220-480G | 0.48 TB | 2.5" Enterprise SSD | - | No recent verified offer | Recommended | SCEMH5.0 |
| Synology | SAT5210-480G | 0.48 TB | 2.5" Enterprise SSD | 5-year warranty | No recent verified offer | Recommended | SCEMH3.2 |
| Synology | SAT5221-480G | 0.48 TB | 2.5" Enterprise SSD | 5-year warranty | New: $1,069.91 | Recommended | F3MN902 |
| Synology | SAT5200-480G | 0.48 TB | 2.5" Enterprise SSD | - | No recent verified offer | Recommended | SCEMJ2.1 |
Extra drive details are published only from manufacturer-owned documents or explicit human review. Follow the model link for field-level sources.
Certified list last checked 2026-08-18.
Compatible Memory
2 memory modules listed by Synology as compatible with DS1825+. Third-party modules may also work, but are not shown here unless Synology itself lists them as compatible.
2certified modules
8–16 GBcapacity range
| SKU | Capacity | DDR generation | ECC | Form factor | Rated speed | Warranty | Source and notes |
|---|---|---|---|---|---|---|---|
| D4ES03-16G | 16 GB | DDR4 | ECC | SODIMM | - | 5-year | Manufacturer source Checked 2026-09-16 |
| D4ES03-8G | 8 GB | DDR4 | ECC | SODIMM | - | 5-year | Manufacturer source Checked 2026-09-16 |
Certified list last checked 2026-09-16. Coverage varies by model. Rated module speed is not a guarantee of NAS operating speed; follow the NAS maximum capacity and installation rules.
Looking for cameras compatible with Synology NAS units? See the full Synology camera compatibility database.