Especificaciones de los Synology RS3618xs y RS3626xs en paralelo, de las fichas técnicas oficiales. Las diferencias están resaltadas.
| RS3618xs | RS3626xs | |
| CPU | Intel Xeon D-1521 | Intel Xeon D-1726 |
| Núcleos / hilos | 4 cores / 8 threads | 6 cores / 12 threads |
| RAM (base) | 8 GB DDR4 ECC UDIMM | 8 GB DDR4 ECC UDIMM |
| RAM (máx.) | 64 GB | 48 GB |
| Bahías | 12 | 12 |
| Ampliable a | 36 total with 2 expansion units | 36 |
| Ranuras M.2 | 0 | 0 built-in; optional via adapter card |
| Red | 4 × 1GbE RJ-45 | 2× 10GbE RJ-45, 1× out-of-band management LAN |
| 10GbE | optional | yes |
| Capacidad bruta máx. | 216 TB | 36 drives |
| Intercambio en caliente | yes | yes |
| Formato | 2U rackmount | 2U rackmount |
| Lanzamiento | 2018 | 2026 |
| Consumo | 142.76 W / 55.05 W | 147.79 W / 75.73 W |
| DSM de lanzamiento | — | — |