Caractéristiques des Synology RS1219+ et RS1221RP+ côte à côte, d'après les fiches techniques officielles. Les différences sont surlignées.
| RS1219+ | RS1221RP+ | |
| CPU | Intel Atom C2538 | AMD Ryzen V1500B |
| Cœurs / threads | 4-core | 4/8 |
| RAM (base) | 2 GB DDR3L | 4 GB |
| RAM (max.) | 16 GB | 32 GB |
| Baies | 8 | 8 |
| Extensible à | 12 | 12 |
| Emplacements M.2 | 2 | 0 |
| Réseau | 4 x 1GbE RJ-45 | 4x 1GbE |
| 10GbE | optional | optional |
| Capacité brute max. | 144TB | 108 TB |
| Remplacement à chaud | yes | yes |
| Format | 2U rackmount | 2U |
| Sortie | 2019 | 2025 |
Choose the RS1221RP+ if you want the stronger CPU (AMD Ryzen class vs older Intel Celeron), much higher RAM ceiling, and the ability to add 10GbE and M.2 cache/SSD options; it also has the redundant PSU model (“RP”) for better uptime. The RS1219+ is the simpler, lower-power choice, but it’s weaker on performance and expandability: lower RAM ceiling, no built-in/official M.2 support, and fewer upgrade headroom options. Both are 4-bay units with Synology expansion support, but the RS1221RP+ is the better pick for performance and future-proofing.