Side-by-side specifications of the Synology DS213 and DS218+, from official datasheets. Differences are highlighted.
| DS213 | DS218+ | |
| CPU | unknown | Intel Celeron J3355, 2.0 GHz (burst up to 2.5 GHz) |
| Cores / threads | unknown | 2 cores / 2 threads |
| RAM (base) | unknown | 2 GB DDR3L |
| RAM (max) | unknown | 6 GB |
| Drive bays | 2 | 2 |
| Expandable to | 0 | 0 |
| M.2 slots | 0 | 0 |
| Network | 1× Gigabit | 1 x 1GbE RJ-45 |
| 10GbE | no | no |
| Max raw capacity | 8 TB | 20 TB (2 x 10 TB) |
| Hot-swap | yes | no |
| Form factor | tower | Desktop |
| Released | 2012 | 2018 |
| Power consumption | — | 17.23 W / 5.4 W |
| DSM at launch | — | — |