Caractéristiques des Synology RS409 et RS409+ côte à côte, d'après les fiches techniques officielles. Les différences sont surlignées.
| RS409 | RS409+ | |
| CPU | 1.2GHz | — |
| Cœurs / threads | — | — |
| RAM (base) | 256MB | — |
| RAM (max.) | — | — |
| Baies | 4 | 4 |
| Extensible à | 4 | 4 via RX4 |
| Emplacements M.2 | 0 | 0 |
| Réseau | 2x Gigabit | 2 x Gigabit |
| 10GbE | no | no |
| Capacité brute max. | 3TB | 8 HDDs |
| Remplacement à chaud | yes | yes |
| Format | 1U rackmount | 1U rackmount |
| Sortie | — | 2009 |
| Consommation | 52.8 W / 23 W | 28 W / 9.5 W |
| DSM à la sortie | 2.1 | 2.1 |
Choose the RS409+ if you need more performance: it has a faster Intel Atom CPU and supports up to 2GB RAM, versus the RS409’s slower CPU and 1GB ceiling. Both are 4-bay units with no 10GbE, M.2 slots, or meaningful bay expansion, so those features do not distinguish them.