The Synology DiskStation DS1821+ is an eight-bay Ryzen V1500B NAS with 4GB ECC memory, four 1GbE ports, two M.2 NVMe slots and PCIe expansion for faster networking. Although discontinued, Synology still lists full DSM and technical support, making it valuable for replacement and 8-bay comparison searches.
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| Brand | Synology |
|---|---|
| Series | DiskStation Plus |
| Model Number | DS1821+ |
| Release Year | 2020 |
| Lifecycle Status | Discontinued; full DSM/support |
| Form Factor | Tower |
| Amazon ASIN | B08NCMB2HQ |
| HDD Bays | 8 |
|---|---|
| M.2 NVMe Slots | 2 |
| Supported Drive Types | 3.5-inch SATA HDD; 2.5-inch SATA SSD; M.2 2280 NVMe SSD |
| Supported RAID | SHR; Basic; JBOD; RAID 0/1/5/6/10 |
| File System | Btrfs; ext4 |
| CPU | Ryzen V1500B |
|---|---|
| CPU Cores | 4 |
| Installed RAM | 4 GB |
| RAM Type | DDR4 ECC SODIMM |
| ECC Memory | True |
| Maximum RAM | 32 GB |
| Hardware Transcoding | No |
| Plex Fit | Direct-play only |
| 1GbE Ports | 4 |
|---|---|
| 2.5GbE Ports | 0 |
| 5GbE Ports | 0 |
| 10GbE RJ45 Ports | 0 |
| 10GbE SFP+ Ports | 0 |
| PCIe Expansion | Yes |
| Operating System | DSM |
|---|
These are NAS-oriented HDD families already tracked by DiskBarn. They are comparison starting points, not a guarantee of compatibility. Check the NAS manufacturer's drive-compatibility guidance and verify the exact HDD model before purchasing.
