?100% Satisfaction Guarantee:As professional manufacturer, every kit is tested strictly before delivery, If there is any problem with the USB Switch received, please feel free to contact us through . We provide free replacement service from the date of purchase to 12 months. ?NOTE: ?If the USB cable fails or cannot be pulled out of the USB switch, we will provide free replacement, please contact us. ?This switch requires manual control to select the active computer port; it does not 'automatically' switch between ports. ?Using the provided 1.5M cables to connect the USB switch to your computers and to keep the USB cable which connects your peripheral to the USB switch under 6ft/1.8m. ?Share 4 USB devices between 4 Comptuers: ?AIMOS 4-Port USB Switch is an excellent choice to share 4 USB devices between 4 Comptuers; ?Simply press the switch button to change the controlling computer, without the need for disconnecting and reconnecting the USB cables, saving time and space! ?It's ideal for sharing a printer or scanner in a small office environment; ?It's also great for use at home if you have multiple PCs or Macs. ?USB 2.0 for faster data transmission. ?Compatible with Windows 10/8/8.1/7 / Vista / XP and Mac OS X, Linux; plug and play, using high technology to decode, no need to drive, support hot plug. ?Two switching modes: ?: Use the four button switches on the host panel. ?: Switch between systems easily using the included remote switch. The switch features a remote push-button on a 1.5meter (4.92ft) integrated cable that can be placed in an easily accessible location. ?Button and LED Indicator Design:easily switches between systems via push buttons with LED indicating the active computer. ?Package Contents: 1*USB 2.0 switch 4*USB cable 1*User Manual 1*Remote switch cable(1.5M) USB Switch Selector, Button and LED design?:Button and LED indicate lights, you can easily switch between 4 computers by a single click on the button or use the remote cable that comes with the package to switch. LED indicating the active computer. Great Compatibility, Driver-free?:Supports 4 USB inputs and 4 USB HUB outputs. Support speed up to 480 Mbps; Backwards compatible with USB 2.0 / 1.1 devices. Plug and Play, supports Windows XP / 7/8/10 / Vista, MAC OS 8.6 and higher. Ideal for Sharing Devices?:Ideal for sharing devices such as printer, scanner, mouse, keyboard, card reader, flash drive and other USB devices between 4 computers. Widely use for office or family, monitoring room, financial operator or designer. This is a good sharer switch for data exchange and transmission. keyboard mouse usb switch?:USB 2.0 sharing switch made of metal case, not easy to scratch! Small and lightweight size: 2.56 x 4 x 0.79 inches. No external power supply is required for the KM switch box. Support for wireless mice and mechanical keyboards. Four computers share 4 USB devices?:4 Port USB sharing switch allows four USB peripherals devices to be shared between Four computers at the push of a button without constantly swapping cables or set up complicated network sharing software. Improve work efficiency.