Side-by-side specifications of the Synology DS2015xs and DS2415+, from official datasheets. Differences are highlighted.
| DS2015xs | DS2415+ | |
| CPU | quad-core CPU | Intel Atom C2538 |
| Cores / threads | 4 cores | 4 cores / 4 threads |
| RAM (base) | 2 GB | 2 GB DDR3 |
| RAM (max) | 8 GB | 6 GB |
| Drive bays | 8 | 12 |
| Expandable to | 12 | 12 (DX1215) |
| M.2 slots | 0 | 0 |
| Network | 2 x 10GbE SFP+; 2 x 1GbE RJ-45 | 4x Gigabit |
| 10GbE | yes | no |
| Max raw capacity | 48 TB internal; 108 TB maximum file system size | 108 TB per volume; 24 drives with DX1215 |
| Hot-swap | yes | yes |
| Form factor | desktop | 12-bay desktop |
| Released | 2015 | 2015 |
| Power consumption | — | — |
| DSM at launch | — | — |