NETGEAR ReadyNAS NVX 4-Bay 4TB (4 x 1000GB) Network Attached Storage provides 4 TB of disk space Support for RAID 0/1/5 and X-RAID2 Three USB ports provide connectivity for hard drives, printers, and more Built-in web-based backup manager and compatible with Time Machine Measures 5.2 x 7.9 x 8.7 inches (WxHxD); backed by five-year warranty