Side-by-side specifications of the Synology DS109J and DS110J, from official datasheets. Differences are highlighted.
| DS109J | DS110J | |
| CPU | Marvell 88F6281 | 800MHz |
| Cores / threads | 1/1 | — |
| RAM (base) | 128MB | 128 MB |
| RAM (max) | 128MB | 128 MB |
| Drive bays | 1 | 1 |
| Expandable to | 0 | — |
| M.2 slots | 0 | 0 |
| Network | 1x Gigabit | 1x Gigabit |
| 10GbE | no | no |
| Max raw capacity | 2TB | 3 TB |
| Hot-swap | no | yes |
| Form factor | desktop | 1-bay desktop |
| Released | 2009 | 2010 |