ITEM NAME:Usb Hub 3.0 5Gbps High Speed 4 Port Usb 3.0 Hub Splitter On/Off Switch For A2B4 Usb Hub 3.0 5Gbps High Speed 4 Port Usb 3.0 Hub Splitter On/Off Switch For A2B4 Provide 4 USB ports, Built-in current overload short circuit protection device; Use high-quality electronic devices to ensure stable operation; The computer automatically recognizes the installation, without the driver, plug and play, plugging and unplugging; Support: windows95/98/ME/2000/XP/Vista, Mac 8.6 or later USB3.0 chip, real high speed chip. (Hi-speed) USB3.0 interface, the theoretical maximum speed can reach 5GB/S, and is backward compatible with USB 2.0/1.1 standard specifications. Equipped with 7 sets of USB jacks with hot plug function Current protection function, support overload voltage and instantaneous current protection function, safe and convenient to use Working humidity: 10% - 90% Working voltage: 5V Working current: 500mA Working temperature: -20C - 75 Celsius Storage temperature: -40C - 85 Celsius colour:black Material:plastic size:10.5*4.5*2cm Package Contents: 1 * USB Hub