Product Characteristics: Supports simultaneous reading of two SATA hard disks, tool-free disassembly and assembly of hard disks, and hot-plugging. USB1.1/USB2.0 SATA I and SATA II are compatible. The high-speed USB2.0 data transfer rate is up to 480MB/sec. The e-SATA interface transfer speed can reach 3GB/sec. Support all 2.5'' / 3.5'' SATA hard drives (maximum support 2TB) The offline cloning speed can reach 70MB/sec. One-key backup function (only on the USB port). The LED indicator can indicate the power and hard disk read/write status and cloning progress. Support system (Window98/Me/2000/XP/Vista/7/Mac operating system 9.X/10.X/Linux).