The Best Buy essentials 4-Port USB 2.0 Hub uses a single USB port to connect up to four USB devices. Just plug the hub into your computer, and the blue LED indicating light lets you know it’s ready for your devices. A 5V, 500 mAh port output delivers consistent and quick power, while a data transfer speed of up to 480 Mbps performs at the speed you need. A compact design makes this hub easy to store and carry.