Mälupulk QNAP 4-Bay QTS and QuTS hero NAS TS-473A-8G Up to 4 HDD/SSD Hot-Swap, Ryzen V1500B Quad-Core, Processor frequency 2.2 GHz, 8 GB, DDR4, 2×2.5GbE, 3xUSB Type A 3.2 Gen 2, 1xUSB Type C 3.2 Gen 1, 2xPCIe, 2xM.2 2280 PCIe Gen3 x1 slots