Expand Google ChromeBook Pixel & Apple Macbook 2015 USB ports. Connect 4 USB 3.0 peripherals such as printer, scanner, flash drive, webcam, and microscope into a single USB-C port. Ideal for charging tablets, smartphones, GPS, MP3 player and other USB devices. This space-saver USB 3.0 BarHub has built-in 11inch cable, overcurrent protection, and status LED. It has optional universal AC power port. NOTE: By using optional power adaptor, it can re-charge tablets and smartphones even it is not connected to the computer. (Connectors: USB-C Male to USB Type A Female; Color: Gray; Dimensions: 4.5 x 1.5 x 0.75 Inches)