Especificações dos Synology DS108j e DS109 lado a lado, das fichas técnicas oficiais. As diferenças estão destacadas.
| DS108j | DS109 | |
| CPU | — | 1.2 GHz |
| Núcleos / threads | — | 1 core / 1 thread |
| RAM (base) | — | 128 MB |
| RAM (máx.) | — | — |
| Baías | 1 | 1 |
| Expansível para | 0 | 0 |
| Ranhuras M.2 | 0 | 0 |
| Rede | 1GbE | 1× Gigabit Ethernet |
| 10GbE | no | no |
| Capacidade bruta máx. | 1 SATA drive | 2 TB |
| Troca a quente | no | no |
| Formato | Desktop | Desktop |
| Lançamento | 2008 | 2009 |
| Consumo | 27 W / 10 W | 19 W / 9 W |
| DSM de lançamento | — | 2.2 |
Choose the DS109 if you want a clearly faster, more capable box: it has a 1-bay design too, but with a stronger CPU and more RAM headroom than the DS108J. Neither model offers 10GbE, M.2, or any bay expansion, so the real decision is simply older/lower-end DS108J versus the better-performing DS109 for basic home/SMB file storage.