Synology Inc. RS1221+ 8-Bay Rackmount NAS 4GB DDR4 AMD Ryzen V1500B 2.2 GHz

Eight-bay rackmount NAS for growing data

The Synology RS1221+ is an eight-bay rackmount network-attached storage system built around an AMD Ryzen V1500B quad-core processor running at 2.2 GHz with 4 GB of DDR4 ECC memory. It targets small to medium businesses that need centralised file storage, backup and virtualization in a compact 2U form factor. The unit ships diskless and supports up to 144 TB of raw capacity using 3.5" or 2.5" SATA drives.

Slide-in trays and expansion slot simplify setup

Each of the eight drive bays uses a tool-less tray so drives can be added or replaced without opening the chassis. A single PCIe 3.0 x8 slot accepts a 10 GbE network card or an M.2 NVMe adapter for SSD cache, both of which install with a standard screw. The only common issue is forgetting to initialise the new volume in DSM before expecting the extra space to appear.

Sustained throughput stays consistent under load

Sequential read performance reaches 2,300 MB/s and 4K random read hits 100 K IOPS, figures that hold during long backup windows or continuous iSCSI workloads. Power draw settles at 49.89 W during access and drops to 22.64 W when drives hibernate, so thermal output remains predictable in shallow 30 cm racks. The fan profile ramps gradually rather than spiking, keeping acoustic levels steady over extended periods.