Side-by-side specifications of the Synology DS413j and DS423, from official datasheets. Differences are highlighted.
| DS413j | DS423 | |
| CPU | Marvell Armada 370 | Realtek RTD1619B |
| Cores / threads | 1/1 | 4/4 |
| RAM (base) | 512 MB | 2 GB DDR4 |
| RAM (max) | 512 MB | 2 GB |
| Drive bays | 4 | 4 |
| Expandable to | 0 | 0 |
| M.2 slots | 0 | 0 |
| Network | 1x Gigabit | 2x 1GbE RJ-45 |
| 10GbE | no | no |
| Max raw capacity | 16 TB | 108 TB |
| Hot-swap | yes | yes |
| Form factor | Desktop | Desktop |
| Released | 2013 | 2026 |