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NAS / Synology / DS1825+

NAS

Synology DS1825+

Currently sold · part of the full NAS model reference - see the full list.

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DS1825+ product photo

Status: Currently sold

An 8-bay desktop NAS from mid-2025 for businesses, creators and small offices, and a light refresh of the DS1821+. The AMD Ryzen V1500B and 8 GB of ECC memory, expandable to 32 GB, handle multiple users, and two M.2 NVMe slots add SSD caching or fast storage.

Seriesx25 Series
Bays8
CPUAMD Ryzen V1500B
Cores / Threads4 / 8
RAM8 GB
CPU architecturex86_64
Support tierfull
Warranty (years)3
Release year2025
RAID levelsBasic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, SHR
RAM (max)32 GB
Memory slots2
Memory generationDDR4
ECC memorySupported
Memory module typeSODIMM
Replaceable memoryReplaceable
Network ports2x 2.5GbE
USB ports3x USB 3.2 Gen 1
PCIe expansion1 × Gen3 x8 slot (x4 link)
M.2 slots2
Drive bay types3.5" SATA HDD or 2.5" SATA SSD; M.2 2280 NVMe SSD
Hot-swappable baysYes
CPU frequency (GHz)2.2
Max bays with expansion unit18
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 D6.5 x 13.5 x 9.6 in (166 x 343 x 243 mm)
Weight13.2 lb (6 kg)
Largest certified configuration observed192 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 driveabout $3,240 new (Synology HAT3310-8T) / about $1,600 used (Synology HAT5310-8T) -- one observed eBay unit price incl. shipping x bays; quantity availability unverified
Estimated cost to fill every bay with a certified 16 TB driveabout $5,552 new (Synology HAT3310-16T) / about $3,192 used (Synology HAT5300-16T) -- one observed eBay unit price incl. shipping x bays; quantity availability unverified
View on Amazon Search eBay (used from $2114.35, new from $1516.99) Official product page

68 eBay listings checked Nov 9, 2026 · 39 new, 29 used

Documents

Compatible network and expansion cards

Check the required OS, firmware, slot, bracket, and installation notes before buying.

ComponentSpecificationsEvidenceRequirements and notesBuy
Marvell FastLinQ QL41134HLCUConnector: SFP+; Host interface: PCIe 3.0 x8; Ports: 4 x 10GbE; Product code: QL41134HLCUOfficially certified
Checked 2026-10-17		Firmware: 8.34.15. DSM version requirement: 6.2-24922 or later version. (Only applicable to models with DSM.)Search Amazon eBay
Synology E10G30-F2Connector: SFP+; Host interface: PCIe 3.0 x8; Ports: 2 x 10GbEOfficially certified
Checked 2026-10-17		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.Amazon eBay
Synology E10G30-T1Connector: RJ45; Host interface: PCIe 3.0 x4; Ports: 1 x 10GbEOfficially certified
Checked 2026-10-17		DSM version requirement: 7.1.1-42962 Update 5 or later version. (Only applicable to models with DSM.)Amazon eBay
Synology E10G30-T2Connector: RJ45; Host interface: PCIe 3.0 x8; Ports: 2 x 10GbEOfficially certified
Checked 2026-10-17		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.Amazon eBay
Synology E25G30-F2Connector: SFP28; Host interface: PCIe 3.0 x8; Ports: 2 x 25GbEOfficially certified
Checked 2026-10-17		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.Amazon eBay
Synology E10G18-T1 (EOL)Connector: RJ45; Host interface: PCIe 3.0 x4; Ports: 1 x 10GbEOfficially certified
Checked 2026-10-17		DSM version requirement: 6.2-23739-2 onward (or 6.1-15284-2 onward with DSM 6.1). (Only applicable to models with DSM.)Amazon eBay
Synology E10G21-F2 (EOL)Connector: SFP+; Host interface: PCIe 3.0 x8; Ports: 2 x 10GbEOfficially certified
Checked 2026-10-17		DSM version requirement: 6.2.3-25426 or later version. (Only applicable to models with DSM.)Amazon eBay

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
39with verified extra specs
Show all 39 certified drives
39 shown
BrandModelCapacityTypeVerified drive detailsRecently observed offersStatusFirmware
SynologyHAT5320-24T details24.0 TB3.5" NAS HDD7200 RPM · 1024 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warrantyNew: $1,553.83Recommended1401
SynologyHAT5310-20T details20.0 TB3.5" Enterprise HDD7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warrantyNew: $899.95 · Used: $1,440.13Recommended1401
SynologyHAT3320-20T details20.0 TB3.5" NAS HDD7200 RPM · 1024 MB cache · CMR · 180 TB/year workload · 1200000 h MTBF · 3-year warrantyNew: $806.19 · Used: $780.00Recommended1401
SynologyHAT5320-20T details20.0 TB3.5" NAS HDD7200 RPM · 1024 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warrantyNew: $1,419.79Recommended1402
SynologyHAT5310-18T details18.0 TB3.5" Enterprise HDD7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warrantyNo recent verified offerRecommended1401
SynologyHAT5300-16T details16.0 TB3.5" Enterprise HDD7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warrantyNew: $782.49 · Used: $399.00Recommended1403
SynologyHAT5310-16T details16.0 TB3.5" Enterprise HDD7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warrantyNew: $1,064.99Recommended1403
SynologyHAT3310-16T details16.0 TB3.5" NAS HDD7200 RPM · 512 MB cache · CMR · 180 TB/year workload · 1200000 h MTBF · 3-year warrantyNew: $693.99 · Used: $505.00Recommended1402
SynologyHAT3300-12T details12.0 TB3.5" NAS HDD7200 RPM · 256 MB cache · CMR · 180 TB/year workload · 1000000 h MTBF · 3-year warrantyNo recent verified offerRecommendedPL01
SynologyHAT5300-12T details12.0 TB3.5" Enterprise HDD7200 RPM · 256 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warrantyNew: $589.99 · Used: $379.99Recommended1402
SynologyHAT3310-12T details12.0 TB3.5" NAS HDD7200 RPM · 512 MB cache · CMR · 180 TB/year workload · 1200000 h MTBF · 3-year warrantyNew: $550.99Recommended1402
SynologyHAT3320-8T details8.0 TB3.5" NAS HDD7200 RPM · 512 MB cache · CMR · 300 TB/year workload · 1200000 h MTBF · 3-year warrantyNew: $554.00Recommended1401
SynologyHAT3310-8T details8.0 TB3.5" NAS HDD7200 RPM · 256 MB cache · CMR · 180 TB/year workload · 1200000 h MTBF · 3-year warrantyNew: $405.00 · Used: $295.00Recommended1403
SynologyHAT5310-8T details8.0 TB3.5" Enterprise HDD7200 RPM · 256 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warrantyNew: $1,027.37 · Used: $199.99Recommended1402
SynologyHAT5320-8T details8.0 TB3.5" Enterprise HDD7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2000000 h MTBF · 5-year warrantyNew: $702.17Recommended1401
SynologyHAT3300-8T details8.0 TB3.5" NAS HDD5400 RPM · 256 MB cache · CMR · 180 TB/year workload · 1000000 h MTBF · 3-year warrantyUsed: $299.99RecommendedPL01
SynologyHAT5300-8T details8.0 TB3.5" Enterprise HDD7200 RPM · 256 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warrantyNew: $998.00 · Used: $225.00Recommended1401
SynologySAT5210-7000G details7.0 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 10000 TBWNew: $7,439.58RecommendedSCEMH5.0
SynologyHAT3300-6T details6.0 TB3.5" NAS HDD5400 RPM · 256 MB cache · CMR · 180 TB/year workload · 1000000 h MTBF · 3-year warrantyNew: $306.99 · Used: $211.00RecommendedPL01
SynologyHAT3300-4T details4.0 TB3.5" NAS HDD5400 RPM · 256 MB cache · CMR · 180 TB/year workload · 1000000 h MTBF · 3-year warrantyNew: $348.72 · Used: $175.00RecommendedPL01
SynologyHAT5300-4T details4.0 TB3.5" Enterprise HDD7200 RPM · 256 MB cache · CMR · 550 TB/year workload · 2000000 h MTBF · 5-year warrantyNo recent verified offerRecommended1403
SynologyHAT5320-4T details4.0 TB3.5" NAS HDD7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2000000 h MTBF · 5-year warrantyNew: $567.27Recommended1401
SynologySAT5220-3840G details3.84 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 7000 TBWNo recent verified offerRecommendedSCEMH5.0
SynologySAT5200-3840G details3.84 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 9162 TBWNo recent verified offerRecommendedSCEMJ2.1
SynologySAT5221-3840G details3.84 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 7000 TBWNew: $3,803.00RecommendedSCEM16.3
SynologySAT5210-3840G details3.84 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 8533 TBWNo recent verified offerRecommendedSCEMH3.2
SynologyHAT3300-2T details2.0 TB3.5" NAS HDD5400 RPM · 256 MB cache · CMR · 180 TB/year workload · 1000000 h MTBF · 3-year warrantyNew: $671.92 · Used: $139.99RecommendedPL01
SynologySAT5210-1920G details1.92 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 4800 TBWNo recent verified offerRecommendedSCEMH3.2
SynologySAT5220-1920G details1.92 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 3500 TBWNew: $799.99RecommendedSCEMH5.0
SynologySAT5221-1920G details1.92 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 3500 TBWNew: $2,200.01 · Refurb: $2,255.63RecommendedSCEM16.3
SynologySAT5200-1920G details1.92 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 4581 TBWNo recent verified offerRecommendedSCEMJ2.1
SynologySAT5200-960G details0.96 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 2290 TBWNo recent verified offerRecommendedSCEMJ2.1
SynologySAT5210-960G details0.96 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 2194 TBWNo recent verified offerRecommendedSCEMH3.2
SynologySAT5221-960G details0.96 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 1700 TBWNew: $1,177.29RecommendedF3MN902
SynologySAT5220-960G details0.96 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 1700 TBWNo recent verified offerRecommendedSCEMH5.0
SynologySAT5220-480G details0.48 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 900 TBWNo recent verified offerRecommendedSCEMH5.0
SynologySAT5210-480G details0.48 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 1097 TBWNo recent verified offerRecommendedSCEMH3.2
SynologySAT5221-480G details0.48 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 900 TBWNo recent verified offerRecommendedF3MN902
SynologySAT5200-480G details0.48 TB2.5" Enterprise SSD1500000 h MTBF · 5-year warranty · 1145 TBWNo recent verified offerRecommendedSCEMJ2.1

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
SKUCapacityDDR generationECCForm factorRated speedWarrantySource and notesBuy
D4ES03-16G16 GBDDR4ECCSODIMM-5-yearManufacturer source
Checked 2026-09-16		Amazon eBay
D4ES03-8G8 GBDDR4ECCSODIMM-5-yearManufacturer source
Checked 2026-09-16		Amazon eBay

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.