ORICO 4-Port USB 3.0 Unibody Aluminum Portable Data Hub for iMac, MacBook, MacBook Air, Mac Mini, PC, Laptop - Black EXTRA USB PORT EXPANSION - Expand your USB 3.0 port to four extra USB 3.0 ports that work with flash drives, keyboards, mouses, and so much more! COMPACT DESIGN - Compact and light. Ensures that there is enough space left on your desktop for your other gadgets! SUPERSPEED DATA TRANSFER RATE - Sync data at blazing speeds up to 5Gbp - fast enough to transfer an HD movie in seconds. PLUG AND PLAY - Hot Swapping, USB Bus Powered, No driver or application needed to install. Just plug it in and go! 18 MONTH WARRANTY WITH LIFETIME TECHNICAL SUPPORT - All ORICO products purchased through Amazon include an 18 month warranty and lifetime technical support. If for any reason you are dissatisfied with your purchase, just let us know and we promise to make it right.