Side-by-side specifications of the Synology DS109+ and DS111, from official datasheets. Differences are highlighted.
| DS109+ | DS111 | |
| CPU | — | 1.6 GHz |
| Cores / threads | — | 1 core / 1 thread |
| RAM (base) | — | 256 MB |
| RAM (max) | — | 256 MB |
| Drive bays | 1 | 1 |
| Expandable to | 0 | 0 |
| M.2 slots | 0 | 0 |
| Network | 1GbE | 1GbE x1 |
| 10GbE | no | no |
| Max raw capacity | — | 3 TB |
| Hot-swap | no | no |
| Form factor | desktop | Desktop |
| Released | 2009 | 2010 |
| Power consumption | 21 W / 12 W | 18.7 W / 7.7 W |
| DSM at launch | 2.1 | — |