1. Plug and Play 2. 4 VGA input ports are connected to four hosts, and one VGA output port is connected to display devices, such as TVs, displays, projectors, etc., to realize the function of four hosts sharing one display 3. 3 USB ports can connect mouse, keyboard, printer, U disk and other peripherals 4. Easy to switch with the button 5. 1080P HD image quality 6. Indicator light shows working status 7. The ABS shell is made of environmentally friendly material, resistant to falling, high temperature and durability 8. Small size, no space, easy to carry 9. Size: 163x80x27mm