2.5IN Esata 3GBPS HD Encl with Esata & USB 2.0 Port for Ext Hd Device Type - 2.5" Hard Drive Enclosure Dimensions WxDxH - 3.5" x 0.75" x 5" Storage Interface Type - ESATA USB2.0 -- Transfer Rates Up to 3Gbps w/ eSATA (dependent on the SATA hard drive type) -- Transfer Rates Up to 480Mbps w/ USB 2.0 (12Mbps W/ USB1.1)