Side-by-side specifications of the Synology DS723+ and DS923+, from official datasheets. Differences are highlighted.
| DS723+ | DS923+ | |
| CPU | AMD Ryzen R1600 | AMD Ryzen R1600 |
| Cores / threads | 2/4 | 2/4 |
| RAM (base) | 2 GB | 4 GB DDR4 ECC SODIMM |
| RAM (max) | 32 GB | 32 GB |
| Drive bays | 2 | 4 |
| Expandable to | 5 | 5 |
| M.2 slots | 2 | 2 |
| Network | 2x 1GbE | 2x 1GbE |
| 10GbE | optional | optional |
| Max raw capacity | 7 drives | 9 drives |
| Hot-swap | yes | yes |
| Form factor | desktop | desktop |
| Released | 2023 | 2023 |
Pick the DS723+ if you want a smaller, lower-cost 2-bay NAS and don’t need built-in expansion headroom: it has a faster Ryzen R1600 CPU, up to 32 GB RAM, and supports two M.2 NVMe slots, but no built-in 10GbE and only 2 bays. Pick the DS923+ if you need more storage growth: it has a slower Ryzen V1500B CPU, up to 32 GB RAM, 4 bays with expansion support, built-in 10GbE upgrade option, and two M.2 slots.