Side-by-side specifications of the Synology RS3411xs and RS3617xs+, from official datasheets. Differences are highlighted.
| RS3411xs | RS3617xs+ | |
| CPU | — | Intel Xeon D-1531 2.2 GHz |
| Cores / threads | — | 6 cores / 12 threads |
| RAM (base) | 4 GB | 8 GB DDR4 ECC UDIMM |
| RAM (max) | 8 GB | 64 GB |
| Drive bays | 10 | 12 |
| Expandable to | 12 with RX1211/RX1211RP | 24 (2× RX1217/RX1217RP) |
| M.2 slots | 0 | 0 |
| Network | 4x Gigabit | 4× 1GbE RJ-45; 2× 10GBase-T RJ-45 |
| 10GbE | optional | yes |
| Max raw capacity | 100 TB | 360 TB |
| Hot-swap | yes | yes |
| Form factor | 2U rackmount | 2U rackmount |
| Released | 2011 | 2017 |
| Power consumption | 115.5 W / 57.2 W | — |
| DSM at launch | — | — |