Side-by-side specifications of the Synology FS2500 and FS3400, from official datasheets. Differences are highlighted.
| FS2500 | FS3400 | |
| CPU | AMD Ryzen V1780B | Intel Xeon D-1541 |
| Cores / threads | 4/8 | 8-core |
| RAM (base) | 8 GB | 16 GB |
| RAM (max) | 32 GB | 128 GB |
| Drive bays | 12 | 24 |
| Expandable to | — | 72 |
| M.2 slots | 0 | null |
| Network | 2x 1GbE + 2x 10GbE | 2x 10GbE RJ-45, 4x GbE RJ-45 |
| 10GbE | yes | yes |
| Max raw capacity | 200 TB | 1 PB |
| Hot-swap | yes | yes |
| Form factor | 1U | 2U rackmount |
| Released | 2025 | 2022 |