Side-by-side specifications of the Synology RS810+ and RS810RP+, from official datasheets. Differences are highlighted.
| RS810+ | RS810RP+ | |
| CPU | Intel Atom D510 | Intel Atom D510 |
| Cores / threads | 2 cores / 4 threads | 2 cores / 4 threads |
| RAM (base) | 1 GB | 1 GB |
| RAM (max) | 3 GB | 3 GB |
| Drive bays | 4 | 4 |
| Expandable to | 4 (up to 8 with RX410) | 4 (up to 8 with RX410) |
| M.2 slots | 0 | 0 |
| Network | 2 x Gigabit Ethernet | 2× Gigabit Ethernet |
| 10GbE | no | no |
| Max raw capacity | 12 TB | 12 TB |
| Hot-swap | yes | yes |
| Form factor | 1U rackmount | 1U rackmount |
| Released | 2010 | 2010 |
| Power consumption | 68 W / unknown | 68 W / unknown |
| DSM at launch | 2.3 | 2.3 |
Choose the RS810RP+ only if you specifically want redundant power supplies; otherwise the RS810+ is the better default pick. Both are the same class of 4-bay unit with the same CPU, RAM ceiling, no 10GbE, and no M.2 support, so there’s no performance or expandability advantage to the RP model. If you need more storage or faster networking, neither is the right box.