QNAP TS-EC1279U-RP 12-Bay NAS, 3U, SATA III. USB 3.0 NAS, iSCSI, IP-SAN storage solution Scale up Storage Over 400TB Raw Capacities,VMware, Citrix and Hyper-V ready High performance, secure, reliable, and simple,the item is not returnable 10 GbE ready reaching over 1,000 MB/s and 100,000 IOPS SSD cache acceleration,Multi-core processor, DDR3, SATA 6Gb/s, and USB 3.0