Side-by-side specifications of the Synology DS213 and DS220j, from official datasheets. Differences are highlighted.
| DS213 | DS220j | |
| CPU | unknown | Realtek RTD1296, 1.4 GHz |
| Cores / threads | unknown | 4 cores / 4 threads |
| RAM (base) | unknown | 512 MB DDR4 non-ECC |
| RAM (max) | unknown | — |
| Drive bays | 2 | 2 |
| Expandable to | 0 | 0 |
| M.2 slots | 0 | 0 |
| Network | 1× Gigabit | 1x 1GbE RJ-45 |
| 10GbE | no | no |
| Max raw capacity | 8 TB | 32 TB (2×16 TB) |
| Hot-swap | yes | no |
| Form factor | tower | Desktop |
| Released | 2012 | 2020 |
| Power consumption | — | 12.46 W / 5.06 W |
| DSM at launch | — | — |