QNAP TS-873AEU-RP-4G 48TB (Seagate Exos) 8-bay short-depth rackmount NAS; AMD Ryzen V1000 series V1500B 4C/8T 2.2GHz; 4GB DDR4 SODIMM RAM (max. 64GB total; optional ECC RAM support); 2 x 2.5GbE LAN; M.2 2280 NVMe/SATA SSD( PCIe Gen3x1); optional 10GbE expansion via PCIe; 1 x PCIe 3.0 x 8 slot; USB 3.2 Gen2 Type-C & Type-A; 2 x 300W PSU