Side-by-side specifications of the Synology DS1812+ and DS3617XS, from official datasheets. Differences are highlighted.
| DS1812+ | DS3617XS | |
| CPU | Dual Core 2.13GHz | Intel Xeon D-1527 |
| Cores / threads | 2 | 4C/8T |
| RAM (base) | 1 GB | 16 GB |
| RAM (max) | 3 GB | 48 GB |
| Drive bays | 8 | 12 |
| Expandable to | 18 | 36 |
| M.2 slots | 0 | 0 |
| Network | 2x Gigabit | 4x 1GbE |
| 10GbE | no | optional |
| Max raw capacity | 54 TB | 360 TB |
| Hot-swap | yes | yes |
| Form factor | desktop | desktop |
| Released | 2012 | 2016 |