Side-by-side specifications of the Synology DS416j and DS416PLAY, from official datasheets. Differences are highlighted.
| DS416j | DS416PLAY | |
| CPU | Marvell Armada 88F6828 1.3GHz | Intel Celeron N3060 |
| Cores / threads | 2 | 2/2 |
| RAM (base) | 512MB | 1GB |
| RAM (max) | 512MB | 1GB |
| Drive bays | 4 | 4 |
| Expandable to | 0 | — |
| M.2 slots | 0 | 0 |
| Network | 1x1GbE | 2x 1GbE |
| 10GbE | no | no |
| Max raw capacity | 32TB | 40TB |
| Hot-swap | yes | yes |
| Form factor | desktop | desktop |
| Released | 2016 | 2016 |
Pick the DS416play if you care about performance: it has a faster CPU and much more RAM headroom, while the DS416j is the weaker, entry-level box. Both are 4-bay units with no expansion beyond the bays, and neither has 10GbE or M.2.