QNAP SMB QNAP TS-863XU-4G NAS, 8-tray w/o HDD, Quad-core 64-bit AMD 2.0GHz, 4GB DDR3L 1x4GB up to 16GB 2x8GB ,1x 10G RJ45, 4x1GbE LAN, 2U Rackmount, 1x250W PSU. W/o rail kit RAIL-B02