Add 2x usb 3 0 and 4x usb 2 0 ports to your laptop or ultrabook externally through a single usb 3 0 connection compatible with samsung chromebook xe303c12 lenovo carbon x1 usb 3 0 hub with charge port notebook and laptop usb 3 0 hub w charging port desktop usb 3 0 usb 2 0 combo hub usb hub ideal for ultrabook and mac book users with limited usb ports add high speed usb 3 0 ports to your laptop smartphone or tablet charging connect external hard drives in the home or office