QNAP Tower NAS, TS-230, 2-Bay, Realtek RTD1296 quad-core 1.4GHz processor, 2GB DDR4, Flash memory: 4GB, 2 x 3.5-inch SATA 6Gb/s, 3Gb/s, 1x GbE LAN, 1 x USB2.0,2x USB 3.2 gen 1, HDD hot-swappable.