Product Information :- USB 2.0 Auto Sharing Switch is a great solution for sharing USB devices like USB printer, scanner, curve plotter, multifunction printer, with four computers. By using this devise, 1 USB device can be shared with 1 to 4 computers can share 1 printer, by this we can cut down office equipment spending and save lots of space. Support Window 2000/XP/Vista/Windows7 32bit, MAC OS. Use Control Button and F11 Button to switch. Using excellent raw materials, the power consumption is lower. LED indicator display. Easy to install, convenient disassembly. 4 In 1 Out USB 2.0 sharing switch is ideal for enabling 4 computers to share one USB device. Simply press the switch button to change the controlling computer. Without the need for disconnecting and reconnecting the USB cables. Easy and time-saving. LED indicator lights show which connected computer has control of the attached devices. Applied to device with USB port, like printer, scanner, curve plotter, multifunction printer, Bluetooth equipment, up to 128 kinds Of device, can be connected to this USB sharing Hub and easily switch, so 4 computers can sharing a USB device, by this we can cut down office equipment spending and save lots of space. USB sharing Hub featured with metal case. anti-oxidation, high-temperature resistance, expand the lifespan of USB switch. Please note :- USB Sharing Switch, Not automatically switch printing tasks from one computer to another, you should manually use keyboard. Keyboard control can use combing keys or mouse control after installing software.