Designed for four computers to share four USB devices (such as keyboards, printers, scanners, mice, card , pen drives, and other USB hub ports).Perfectly suited for home or office environments, especially for users with multiple PCs or computers. 4-In 4-Out Design: Enables four computer hosts to share a set of USB devices (e.g., mouse and keyboard), achieving efficient resource utilization. Easy Plug-and-Play Installation: Simple installation, just connect the device to the computers and USB peripherals, and start using it right away. Convenient Switching Function: Quickly switch USB device access between four computers through buttons on the device or keyboard, enhancing work efficiency. LED Indicators: Equipped with LED indicators that display the currently active computer, providing users with an intuitive understanding of device connection status and facilitating easy device switching. Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. voltage: AC110V Colour:black Material:ABS Package Contents: 1 x 4 x 4 USB computer mouse and keyboard sharing switch kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.