ORICO 4818-U3 Portable 4 Port USB3.0 HUB built-in latest VL812 USB3.0 controller, You can add 4 - ports USB3.0 for your computer to connect 4 USB devices for accessing or charging.Portable profile special for Ultra Book/Win 8 Tablet PC/Laptop.VL812 controller features Advanced USB PHY Technology,Provide transmission speed up to 5Gbps.Built-in integrated charging unit Provide Digitally Charging Port(DCP) and Charging Downstream Port(CDP) conformed to USB Charging 1.2 Spec.The power supply is stable and reliable with Voltage & current overload protection unit.ORICO 4818-U3 is humanized designed with nice profile.If you"re running out of USB ports on your computer,WXPH4 is an ideal solution & affordable solution for you to add more USB3.0 ports for your computer to connect External HDD/USB Flash Memory/Card Reader/Mouse/Keyboard/Camera/Cell Phone/Tablet PC/USB Network Adapter and other USB peripherals.