Infortrend EonNAS Pro 850 Diskless 8 bay tower NAS, Intel Dual-Core 3.3GHz CPU, 4GB or 8GB DDR3 RAM, Host ports, Two (2) Gigabit LAN (EonNAS Pro 850), 7 x USB ports (front: 1, rear: 6), RAID0/1/5/5+Hot spare/6/6+Hot spare/10/50/60