The Cavalry CAXM37500 3.5-Inch 500 GB SATA External Hard Drive is superb external mobile solution for all your data storage needs. The hard drive features an aluminum casing to keep the pre-installed 500 GB SATA hard drive nice and cool to extend the life of the drive. The CAXM37500 supports an incredible transfer rate of 3 Gbps (SATA) and 480 Mbps (USB 2.0), making it easy to add storage to any system with either SATA or USB connectivity. And with it"s portable design, plug and play, and hot-swappable connection, Cavalry makes it hassle-free to take your data with you anywhere.