Caractéristiques des Synology DS109j et DS109+ côte à côte, d'après les fiches techniques officielles. Les différences sont surlignées.
| DS109j | DS109+ | |
| CPU | — | — |
| Cœurs / threads | — | — |
| RAM (base) | — | — |
| RAM (max.) | — | — |
| Baies | 1 | 1 |
| Extensible à | 0 | 0 |
| Emplacements M.2 | 0 | 0 |
| Réseau | 1× Gigabit Ethernet | 1GbE |
| 10GbE | no | no |
| Capacité brute max. | — | — |
| Remplacement à chaud | no | no |
| Format | Desktop | desktop |
| Sortie | 2009 | 2009 |
| Consommation | 26 W / 10 W | 21 W / 12 W |
| DSM à la sortie | 2.1 | 2.1 |
Pick the DS109+ if you want the faster CPU and the higher RAM ceiling; it is the better choice for heavier file sharing, more users, and generally smoother NAS performance. Both are 1-bay units with no expansion, no 10GbE, and no M.2, so the real deciding factor is performance and memory rather than upgradeability.