Side-by-side specifications of the Synology DS213 and DS409+, from official datasheets. Differences are highlighted.
| DS213 | DS409+ | |
| CPU | unknown | unknown |
| Cores / threads | unknown | unknown |
| RAM (base) | unknown | unknown |
| RAM (max) | unknown | unknown |
| Drive bays | 2 | 4 |
| Expandable to | 0 | no |
| M.2 slots | 0 | 0 |
| Network | 1× Gigabit | 1GbE |
| 10GbE | no | no |
| Max raw capacity | 8 TB | unknown |
| Hot-swap | yes | unknown |
| Form factor | tower | desktop |
| Released | 2012 | 2009 |
| Power consumption | — | 56 W / 20 W |
| DSM at launch | — | 2.1 |