The HD-250B-U2 external enclosure supports all 2.5'' SATA I/II hard drives with a USB 2.0 interface for transferring your digital data at the rate of 480 MB per second. Its black aluminum alloy case delivers the fastest heat dissipation rate, allowing your hard drive to run smoothly while establishing a contemporary and sophisticated appeal. Plug and play - connect your enclosure to your computer and begin your easy data storage process now!