HOMENetwork Attached Storage (NAS)4 Hard Drive Bays4-Bay NAS, Quad-core 2.1 GHz CPU, 4GB RAM, 2x M.2, 2x PCIe, 4x GigE QNAP 16-15523 4-Bay NAS, Quad-core 2.1 GHz CPU, 4GB RAM, 2x M.2, 2x PCIe, 4x GigE SKU #16-15523 Oh oh! That product is no longer available... Check out these alternatives QNAP QGD-3014-16PT-8G Smart Edge PoE Switch, NAS, NVR, Router Appliance Details QNAP TBS-464-8G Quad-core 4-bay M.2 NVMe SSD NASbook Details QNAP TS-431K 4-Bay NAS, Quad-core 1.7 GHz CPU, 1GB RAM, 2x GigE Details QNAP TS-431KX-2G 4-Bay NAS, Quad-core 1.7 GHz CPU, 2GB RAM, 10GbE Details VIEW ALL 4 Hard Drive Bays