← Back to the full Synology NAS list
Status: Legacy / discontinued
An enterprise 2U rackmount NAS built for big studios and data centers with fast-growing storage. The 12-core AMD EPYC and 32 GB of ECC memory, expandable to 1 TB, handle heavy loads, and you can grow from 12 bays to 108 with expansion units. Way beyond what a small office needs.
| Series | SA Series |
|---|---|
| Bays | 12 |
| CPU | AMD EPYC 7272 |
| Cores / Threads | 12 / 24 |
| RAM | 32 GB |
| CPU architecture | x86_64 |
| Support tier | full |
| Warranty (years) | 5 |
| Release year | 2023 |
| RAID levels | Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID F1 |
| PCIe slot types | 2x PCIe Gen 3 x8 |
| RAM (max) | 1024 GB |
| Memory slots | 16 |
| Memory generation | DDR4 |
| ECC memory | Supported |
| Memory module type | RDIMM |
| Replaceable memory | Replaceable |
| Network ports | 2x 10GbE + 5x 1GbE |
| USB ports | 2x USB 3.2 |
| PCIe expansion | 2 |
| M.2 slots | None |
| Drive bay types | 3.5" SATA HDD, 2.5" SATA SSD |
| Hot-swappable bays | Yes |
| CPU frequency (GHz) | 2.9 |
| Power supply (W) | 550 |
| Dimensions H x W x D | 3.5 x 16.9 x 27.2 in (88 x 430.5 x 692 mm) |
| Weight | 36.4 lb (16.5 kg) |
| Largest certified configuration observed | 288 TB (12 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 $8,426 new (Synology HAT5320-8T) / about $2,400 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 drive | about $9,480 new (Synology HAT5300-16T) / about $4,788 used (Synology HAT5300-16T) -- one observed eBay unit price incl. shipping x bays; quantity availability unverified |
Documents
Compatible network and expansion cards
Check the required OS, firmware, slot, bracket, and installation notes before buying.
| Component | Specifications | Evidence | Requirements and notes | Buy |
|---|---|---|---|---|
| Intel Ethernet Converged Network Adapter X710-T4 | Connector: RJ45; Host interface: PCIe 3.0 x8; Ports: 4 x 10GbE; Product code: X710-T4 | Officially certified Checked 2026-10-17 | Firmware: 5.05. DSM version requirement: 6.2-23739 or later version. (Only applicable to models with DSM.) | Amazon eBay |
| Intel Ethernet Converged Network Adapter XL710-QDA2 | Connector: QSFP+; Host interface: PCIe 3.0 x8; Ports: 2 x 40GbE; Product code: XL710QDA2 | Officially certified Checked 2026-10-17 | Firmware: 5.04. | Search Amazon eBay |
| Marvell FastLinQ QL41134HLCU | Connector: SFP+; Host interface: PCIe 3.0 x8; Ports: 4 x 10GbE; Product code: QL41134HLCU | Officially 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-F2 | Connector: SFP+; Host interface: PCIe 3.0 x8; Ports: 2 x 10GbE | Officially 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-T1 | Connector: RJ45; Host interface: PCIe 3.0 x4; Ports: 1 x 10GbE | Officially 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-T2 | Connector: RJ45; Host interface: PCIe 3.0 x8; Ports: 2 x 10GbE | Officially 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 E10M20-T1 | Connector: RJ45; Host interface: PCIe 3.0 x8; Ports: 1 x 10GbE | Officially certified Checked 2026-10-17 | DSM version requirement: 6.2.3-25426 or later version. (Only applicable to models with DSM.) | Amazon eBay |
| Synology E10M20-T1 | Connector: RJ45; Host interface: PCIe 3.0 x8; Ports: 1 x 10GbE; Storage interface: PCIe NVMe; Supported form factor: 2280 / 22110 | Officially certified Checked 2026-10-17 | DSM version requirement: 6.2.3-25426 or later version.; DSM version requirement for RS18017xs+, RS4017xs+, RS3618xs, RS3617xs+, RS3617RPxs, DS3617xs and DS3617xsII: 7.0.1 or later version. | Amazon eBay |
| Synology E25G30-F2 | Connector: SFP28; Host interface: PCIe 3.0 x8; Ports: 2 x 25GbE | Officially 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 M2D20 | Host interface: PCIe 3.0 x8; Storage interface: PCIe NVMe; Supported form factor: 2280 / 22110 | Officially certified Checked 2026-10-17 | DSM version requirement: 6.2.3-25426 or later version.; DSM version requirement for RS18017xs+, RS4017xs+, RS3618xs, RS3617xs+, RS3617RPxs, DS3617xs and DS3617xsII: 7.0.1 or later version. | Amazon eBay |
| Synology E10G18-T1 (EOL) | Connector: RJ45; Host interface: PCIe 3.0 x4; Ports: 1 x 10GbE | Officially 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 E10G18-T2 (EOL) | Connector: RJ45; Host interface: PCIe 3.0 x8; Ports: 2 x 10GbE | Officially certified Checked 2026-10-17 | DSM version requirement: 6.2.1-23824 or later version. (Only applicable to models with DSM.) | Amazon eBay |
| Synology E10G21-F2 (EOL) | Connector: SFP+; Host interface: PCIe 3.0 x8; Ports: 2 x 10GbE | Officially certified Checked 2026-10-17 | DSM version requirement: 6.2.3-25426 or later version. (Only applicable to models with DSM.) | Amazon eBay |
| Synology E25G21-F2 (EOL) | Connector: SFP28; Host interface: PCIe 3.0 x8; Ports: 2 x 25GbE | Officially certified Checked 2026-10-17 | DSM version requirement: 6.2.3-25426 or later version. (Only applicable to models with DSM.); For best performance, we recommend using memory in dual-channel configuration. For instructions, refer to Hardware Installation Guide. | Amazon |
Compatible Drives
29 drives certified on SA6400'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.
29certified models
1drive brands
24 TBlargest listed
29with verified extra specs
Certified drives by capacity
0.48 TB4
0.96 TB4
1.92 TB4
3.84 TB4
4 TB2
7 TB1
8 TB3
12 TB1
16 TB2
18 TB1
20 TB2
24 TB1
Show all 29 certified drives
29 shown
| Brand | Model | Capacity | Type | Verified drive details | Recently observed offers | Status | Firmware |
|---|---|---|---|---|---|---|---|
| Synology | HAT5320-24T details | 24.0 TB | 3.5" NAS HDD | 7200 RPM · 1024 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warranty | New: $1,440.78 | Recommended | 1401 |
| Synology | HAT5310-20T details | 20.0 TB | 3.5" Enterprise HDD | 7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warranty | New: $899.95 · Used: $1,451.11 | Recommended | 1401 |
| Synology | HAT5320-20T details | 20.0 TB | 3.5" NAS HDD | 7200 RPM · 1024 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warranty | New: $1,407.45 | Recommended | 1402 |
| Synology | HAT5310-18T details | 18.0 TB | 3.5" Enterprise HDD | 7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warranty | No recent verified offer | Recommended | 1401 |
| Synology | HAT5300-16T details | 16.0 TB | 3.5" Enterprise HDD | 7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warranty | New: $789.97 · Used: $399.00 | Recommended | 1402 |
| Synology | HAT5310-16T details | 16.0 TB | 3.5" Enterprise HDD | 7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warranty | New: $1,047.99 | Recommended | 1403 |
| Synology | HAT5300-12T details | 12.0 TB | 3.5" Enterprise HDD | 7200 RPM · 256 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warranty | New: $589.99 · Used: $379.99 | Recommended | 1401 |
| Synology | HAT5310-8T details | 8.0 TB | 3.5" Enterprise HDD | 7200 RPM · 256 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warranty | New: $1,035.21 · Used: $199.99 | Recommended | 1402 |
| Synology | HAT5320-8T details | 8.0 TB | 3.5" NAS HDD | 7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2000000 h MTBF · 5-year warranty | New: $702.17 | Recommended | 1401 |
| Synology | HAT5300-8T details | 8.0 TB | 3.5" Enterprise HDD | 7200 RPM · 256 MB cache · CMR · 550 TB/year workload · 2500000 h MTBF · 5-year warranty | New: $1,009.00 · Used: $225.00 | Recommended | 1401 |
| Synology | SAT5210-7000G details | 7.0 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 10000 TBW | New: $7,496.33 | Recommended | SCEMH5.0 |
| Synology | HAT5300-4T details | 4.0 TB | 3.5" Enterprise HDD | 7200 RPM · 256 MB cache · CMR · 550 TB/year workload · 2000000 h MTBF · 5-year warranty | No recent verified offer | Recommended | 1403 |
| Synology | HAT5320-4T details | 4.0 TB | 3.5" NAS HDD | 7200 RPM · 512 MB cache · CMR · 550 TB/year workload · 2000000 h MTBF · 5-year warranty | New: $577.10 | Recommended | 1401 |
| Synology | SAT5220-3840G details | 3.84 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 7000 TBW | No recent verified offer | Recommended | SCEMH5.0 |
| Synology | SAT5200-3840G details | 3.84 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 9162 TBW | No recent verified offer | Recommended | SCEMJ2.1 |
| Synology | SAT5221-3840G details | 3.84 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 7000 TBW | New: $2,642.47 | Recommended | SCEM16.3 |
| Synology | SAT5210-3840G details | 3.84 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 8533 TBW | No recent verified offer | Recommended | SCEMH3.2 |
| Synology | SAT5210-1920G details | 1.92 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 4800 TBW | No recent verified offer | Recommended | SCEMH3.2 |
| Synology | SAT5220-1920G details | 1.92 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 3500 TBW | New: $799.99 | Recommended | SCEMH5.0 |
| Synology | SAT5221-1920G details | 1.92 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 3500 TBW | New: $2,200.01 · Refurb: $2,272.83 | Recommended | SCEM16.3 |
| Synology | SAT5200-1920G details | 1.92 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 4581 TBW | No recent verified offer | Recommended | SCEMJ2.1 |
| Synology | SAT5200-960G details | 0.96 TB | 2.5" Enterprise SSD | 2048 MB cache · 1500000 h MTBF · 5-year warranty · 2290 TBW | No recent verified offer | Recommended | SCEMJ2.1 |
| Synology | SAT5210-960G details | 0.96 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 2194 TBW | New: $489.00 | Recommended | SCEMH3.2 |
| Synology | SAT5221-960G details | 0.96 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 1700 TBW | New: $1,177.29 | Recommended | F3MN902 |
| Synology | SAT5220-960G details | 0.96 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 1700 TBW | No recent verified offer | Recommended | SCEMH5.0 |
| Synology | SAT5220-480G details | 0.48 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 900 TBW | No recent verified offer | Recommended | SCEMH5.0 |
| Synology | SAT5210-480G details | 0.48 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 1097 TBW | No recent verified offer | Recommended | SCEMH3.2 |
| Synology | SAT5221-480G details | 0.48 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 900 TBW | No recent verified offer | Recommended | F3MN902 |
| Synology | SAT5200-480G details | 0.48 TB | 2.5" Enterprise SSD | 1500000 h MTBF · 5-year warranty · 1145 TBW | 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
3 memory modules listed by Synology as compatible with SA6400. Third-party modules may also work, but are not shown here unless Synology itself lists them as compatible.
3certified modules
32–64 GBcapacity range
| SKU | Capacity | DDR generation | ECC | Form factor | Rated speed | Warranty | Source and notes | Buy |
|---|---|---|---|---|---|---|---|---|
| D4ER01-64G | 64 GB | DDR4 | ECC | RDIMM | - | 5-year | Manufacturer source Checked 2026-09-16 | Amazon eBay |
| D4ER02-64G | 64 GB | DDR4 | ECC | RDIMM | - | 5-year | Manufacturer source Checked 2026-09-16 | Search Amazon |
| D4ER02-32G | 32 GB | DDR4 | ECC | RDIMM | - | 5-year | Manufacturer 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.