Side-by-side specifications of the Synology RS3614xs+ and SA3610, from official datasheets. Differences are highlighted.
| RS3614xs+ | SA3610 | |
| CPU | Intel Xeon E3 Quad Core 3.3GHz | Intel Xeon D-1567 |
| Cores / threads | 4 cores | 12/24 |
| RAM (base) | 8GB ECC | 16 GB |
| RAM (max) | 32GB | 128 GB |
| Drive bays | 12 | 12 |
| Expandable to | 36 | 96 |
| M.2 slots | 0 | 0 |
| Network | 4x Gigabit | 4x 1GbE, 2x 10GbE |
| 10GbE | optional | yes |
| Max raw capacity | 216TB | 1.728 PB raw |
| Hot-swap | yes | yes |
| Form factor | 2U rack | 2U |
| Released | 2014 | 2025 |
Choose the SA3610 if you want a much newer, far faster platform: it has a much stronger CPU, a far higher RAM ceiling, 12 bays with expansion support, built-in 10GbE, and M.2 support. The RS3614xs+ is older and only makes sense if you find it much cheaper; it has a weaker CPU, much lower max RAM, 12 bays with expansion support, 10GbE only on some configurations/add-ons, and no M.2.