DS1821+
| Product name | Accessory Category | Optional accessories | Optional accessories Model Number | Product Image |
|---|---|---|---|---|
| DiskStation® DS1821+ | Memory | DDR4 ECC SODIMM | D4ES02-4G |  |
| DiskStation® DS1821+ | Memory | DDR4 ECC SODIMM | D4ES02-8G | |
| DiskStation® DS1821+ | Memory | DDR4 ECC SODIMM | D4ES01-16G | |
| DiskStation® DS1821+ | Expansion Units | Expansion Units | DX517 |  |
| DiskStation® DS1821+ | Storage | Enterprise Series 3.5" SATA HDD | HAT5300 Series |  |
| DiskStation® DS1821+ | Storage | Plus Series 3.5" SATA HDD | HAT3300 Series |  |
| DiskStation® DS1821+ | Storage | Enterprise Series 2.5" SATA SSD | SAT5200 Series |  |
| DiskStation® DS1821+ | Storage | Enterprise Series M.2 2280 NVMe SSD | SNV3400 Series |  |
| DiskStation® DS1821+ | Networking | 25GbE Network Interface Card | E25G30-F2 |  |
| DiskStation® DS1821+ | Networking | 10GbE Network Interface Card | E10G21-F2 |  |
| DiskStation® DS1821+ | Networking | 10GbE Network Interface Card | E10G30-T2 |  |
| DiskStation® DS1821+ | Networking | 10GbE Network Interface Card | E10G18-T1 | |
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