USB 3.0 4-Port Portable Aluminum Hub The Sturdy Aluminum 4-Port Hub From ANKER, the Choice of 20 Million+ Happy Users Industry-Leading Technology 18-Month Warranty 99% Positive Feedback Quick Sync Transmit data via USB at up to 5Gbps, fast enough to transfer a high-definition movie in seconds-no more wait times when sending and receiving important files. Seamless Aluminum Unibody The sleek aluminum alloy casing prevents damage from repeated plugging-in, sliding easily in and out of a purse or pocket. Versatile and Compact Stick your desk or wall, or take it with you on the go. Easily slips into a pocket or bag for easy transportation. Firmly secure in place with the included heavy-duty hook-and-loop strap. Worry-Free Warranty At Anker, we believe in our products. That's why we back them all with an 18-month warranty and provide friendly, easy-to-reach support. Supported Systems: Windows 10, 8, 7, Vista, XP Max OSx 10.6-10.12 or later Linux 2.6.14 or Later Compatibility: 2.4GHz wireless devices, MIDI devices and some USB 3.0 devices may not be supported. Try using the host port or a USB 2.0 connection. Power Usage: For a stable connection, don't use this hub with high power-consumption devices, such as external hard drives. The hub will sync but not charge tablets and other devices which require a higher power input. Data Port Output Current:Standard 900mA max