Side-by-side specifications of the Synology DS214+ and DS425+, from official datasheets. Differences are highlighted.
| DS214+ | DS425+ | |
| CPU | dual-core CPU with floating-point unit | Intel Celeron J4125 |
| Cores / threads | 2 cores / 2 threads | 4 cores / 4 threads |
| RAM (base) | 1 GB DDR3 | 2 GB DDR4 non-ECC |
| RAM (max) | 1 GB | 6 GB |
| Drive bays | 2 | 4 |
| Expandable to | 0 | 0 |
| M.2 slots | 0 | 2 × M.2 2280 NVMe |
| Network | 2 x Gigabit | 1 × 1GbE, 1 × 2.5GbE |
| 10GbE | no | no |
| Max raw capacity | 12 TB | 80 TB |
| Hot-swap | yes | yes |
| Form factor | desktop | desktop |
| Released | 2013 | 2025 |
| Power consumption | — | 28.25 W / 6.10 W |
| DSM at launch | — | — |