Side-by-side specifications of the Synology DS207 and DS207+, from official datasheets. Differences are highlighted.
| DS207 | DS207+ | |
| CPU | — | 500 MHz |
| Cores / threads | — | — |
| RAM (base) | 64 MB | 128 MB |
| RAM (max) | 128 MB | — |
| Drive bays | 2 | 2 |
| Expandable to | 0 | 0 |
| M.2 slots | 0 | 0 |
| Network | 1 GbE x1 | 1 GbE x1 |
| 10GbE | no | no |
| Max raw capacity | 2 TB | 2 TB |
| Hot-swap | yes | yes |
| Form factor | desktop | 2-bay desktop NAS |
| Released | 2008 | 2007 |
Pick the DS207+ if you care about performance headroom: it has the faster CPU and a higher RAM ceiling than the DS207. Both are 2-bay units with no expansion, and neither has 10GbE or M.2.