Round shaped docking, very stable and convenient to use. Support USB 2.0 to SATA interface, transfer rate up to 480Mb/sec. Support e-SATA to SATA interface, transfer rate up to 3.0Gb/sec. Suitable for any 1.8"/2.5"/3.5" SATA HDD hard disk drive. Can read SD, MS, TF, CF, XD, M2, up to 64 memory cards. HDD multi-function dock with one button backup. Connect at least two USB devices through the 2-port hub for file sharing. Can transfer files from card readers or HD to PC/Laptop. Easy to install and remove the hard disk drive. One touch backup function. Easy to install and remove the hard disk drive. Output interface: USB 2.0. Power input: 100-240V. Output: DC 12V.