Six‑bay NAS powered by an AMD Ryzen V1500B quad‑core at 2.2 GHz, with 4 GB DDR4 ECC and dual NVMe M.2 slots for fast cache or SSD expansion. It offers four Gigabit Ethernet ports supporting link aggregation, active cooling, hot‑swap drives up to 108 TB, and full SMB3/NFS/iSCSI file sharing with built‑in DiskStation Manager. Wake‑on‑LAN and a 250 W PSU keep it ready for small‑to‑medium business workloads.
| Brand | Synology |
| EAN | 4711174723775 |
| ASIN | B08JH22W42 |
| MPN | DS1621+ |
| SKU | DS1621+ |
| AC input frequency | 50/60 Hz |
| AC input voltage | 100 - 240 V |
| Access Control List ACL | Yes |
| Browser supported | Google Chrome, Firefox, Microsoft Edge, Internet Explorer 10, Safari |
| Built-in display | Yes |
| Chassis type | Desktop |
| Colour | Black |
| Cooling type | Active |
| Depth | 243 mm |
| Device class | Small & Medium Business |
| eSATA ports quantity | 2 |
| Ethernet LAN | Yes |
| Ethernet LAN data rates | 10,100,1000 Mbit/s |
| Ethernet LAN ports | 4 |
| Fan diameter | 9.2 cm |
| Harmonized System HS code | 84714100 |
| Height | 166 mm |
| Installed storage drive type | No |
| LED indicators | Yes |
| Mac operating systems supported | Yes |
| Maximum RAM supported | 32 GB |
| Maximum supported storage capacity | 108 TB |
| Memory form factor | SO-DIMM |
| Number of power supply units | 1 |
| Number of Users | 2048 user(s) |
| Operating relative humidity | 5 - 95% |
| Operating system installed | DiskStation Manager |
| Operating temperature | 0 - 40 °C |
| Power consumption | 51.22 W |
| Power consumption HDD standby | 25.27 W |
| Power supply location | Built-in |
| Power supply unit PSU capacity | 250 W |
| Processor family | AMD Ryzen |
| Processor frequency | 2.2 GHz |
| Processor model | V1500B |
| RAID levels | 0, 1, 5, 6, 10 |
| Storage drive sizes supported | 2.5,3.5" |
| Storage drives installed | No |
| Storage drives supported | 6 |
| Storage temperature | -20 - 60 °C |
| Supported storage drive types | HDD & SSD |
| Type | NAS |
| USB 3.2 Gen 1 | 3 |
| USB port | Yes |
| Weight | 5.1 kg |
| Width | 282 mm |
| Windows operating systems supported | Yes |