USB hub 3.0 4 ports 30 cm cable lentgh good quality [ 303 ] Features More Ports Turn one of your computer’s USB ports into four. Ultra-Portable Weighing about an ounce and super small, this Ultra Slim Hub is designed to be as portable as possible. Specifications Model 303 Interface USB 3.0 Ports 4 Transfer Rate 5Gbps Cable Length 30 cm OS Support Windows 10/8/8.1/7 / Vista / XP and Mac OS X, Linux and Chrome OS for more USB Hub Click Here