Caractéristiques des Synology DS109 et DS109+ côte à côte, d'après les fiches techniques officielles. Les différences sont surlignées.
| DS109 | DS109+ | |
| CPU | 1.2 GHz | — |
| Cœurs / threads | 1 core / 1 thread | — |
| RAM (base) | 128 MB | — |
| 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. | 2 TB | — |
| Remplacement à chaud | no | no |
| Format | Desktop | desktop |
| Sortie | 2009 | 2009 |
| Consommation | 19 W / 9 W | 21 W / 12 W |
| DSM à la sortie | 2.2 | 2.1 |
Choose the DS109+ if you want the stronger CPU and higher RAM ceiling; those are the only meaningful performance advantages over the DS109. Both are single-bay units with no expansion, and neither has 10GbE or M.2 support, so if you need more than basic file serving, you should look beyond both.