Side-by-side specifications of the Synology RS3411xs and SA3400, from official datasheets. Differences are highlighted.
| RS3411xs | SA3400 | |
| CPU | — | Intel Xeon D-1541, 2.1 GHz (Turbo 2.7 GHz) |
| Cores / threads | — | 8 cores / 16 threads |
| RAM (base) | 4 GB | 16 GB DDR4 ECC RDIMM |
| RAM (max) | 8 GB | 128 GB |
| Drive bays | 10 | 12 |
| Expandable to | 12 with RX1211/RX1211RP | Up to 168 via 7 RX2417sas/RX1217sas expansion units |
| M.2 slots | 0 | 0; optional via adapter card |
| Network | 4x Gigabit | 4 x 1GbE RJ-45, 2 x 10GbE RJ-45 |
| 10GbE | optional | yes |
| Max raw capacity | 100 TB | 192 TB internal; 1536 TB with 7 RX1217sas |
| Hot-swap | yes | yes |
| Form factor | 2U rackmount | 2U rackmount |
| Released | 2011 | 2020 |
| Power consumption | 115.5 W / 57.2 W | — |
| DSM at launch | — | — |