Side-by-side specifications of the Synology DS918+ and DS923+, from official datasheets. Differences are highlighted.
| DS918+ | DS923+ | |
| CPU | Intel Celeron J3455 | AMD Ryzen R1600 |
| Cores / threads | 4-core | 2/4 |
| RAM (base) | 4 GB DDR3L | 4 GB DDR4 ECC SODIMM |
| RAM (max) | 8 GB | 32 GB |
| Drive bays | 4 | 4 |
| Expandable to | 9 | 5 |
| M.2 slots | 2 | 2 |
| Network | 2 x 1GbE | 2x 1GbE |
| 10GbE | no | optional |
| Max raw capacity | 40 TB | 9 drives |
| Hot-swap | yes | yes |
| Form factor | desktop | desktop |
| Released | 2018 | 2023 |