QNAP TS-670-US 6-Bay iSCSI NAS, SATA 6G, 4LAN, 10GbE-ready, LCD (TS-670-US) Up to 450MB/s read and 432MB/s write speed with optional 10GbE support Scale up to 38 hard drives with 228TB raw capacity with REXP-1600U-RP RAID expansion enclosures Complete backup, disaster recovery and data security management Supports VMware , Citrix , and Microsoft Hyper-V and advanced virtualization features Read 447MB/s, Write 432MB/s, Intel Dual Core 2.6 GHz, 2GB RAM, USB 3.0, QTS 4.0, Surveillance Station (Max 16Ch)