Targus 4-Port USB 3.0 SuperSpeed Hub with AC Adapter and 5-Foot Cable (ACH119US) Designed to support up to four(4) USB devices Using USB 3.0 this hub is capable of transferring files at a rate up to 615MB / sec Designed to work with PC, Mac and Netbook computers; Windows 8, 7, Vista, XP, Mac OS X v10.8, Mac OS X v10.7 A compact design makes it easy to transport anywhere Conveniently connects to most laptops and desktop computers with a bundled USB 3.0 cable Limited warranty does not cover products purchased from 3rd party sellers