Technische Daten von Synology DS1621+ und DS1821+ im direkten Vergleich, aus offiziellen Datenblättern. Unterschiede sind hervorgehoben.
| DS1621+ | DS1821+ | |
| CPU | AMD Ryzen V1500B | AMD Ryzen V1500B |
| Kerne / Threads | 4 | 4 |
| RAM (Basis) | 4 GB | 4 GB |
| RAM (max.) | 32 GB | 32 GB |
| Laufwerksschächte | 6 | 8 |
| Erweiterbar auf | 16 | 18 |
| M.2-Steckplätze | 2 | 2 |
| Netzwerk | 4x 1GbE RJ-45 | 4x1GbE RJ-45 |
| 10GbE | optional | optional |
| Max. Rohkapazität | 256 TB | 108 TB |
| Hot-Swap | yes | yes |
| Formfaktor | desktop | desktop |
| Erschienen | 2020 | 2020 |
The DS1821+ is the stronger pick if you want more headroom: both use the same Ryzen V1500B CPU, but the DS1821+ has 8 bays vs 6 on the DS1621+, supports up to 32GB RAM like the DS1621+, and gives you two extra drive bays for capacity and RAID flexibility. Both support 10GbE expansion and M.2 NVMe SSD cache via add-on cards, so the real decision is mainly 6-bay cheaper/smaller vs 8-bay more scalable.