The Mapower GXT MAP-KC31BU2V-N3A 3.5-inch External Hard Drive Enclosure provides a fast and easy way to add more storage space for your computer! The USB 2.0 interface allows for data transfer rates up to 480 Mbps. Its aluminum construction provides excellent heat dissipation and the JCold blue LED light will keep you updated on the system access and power status. The One Touch Backup button is a great feature which can allow you to backup, restore, and synchronize with incredible ease! Just add a 3.5-inch IDE hard drive and start backing up your data today!