Feature:1. 4 PORT: USB VGA KVM switch allows you to control up to 4 computers with just one set of USB devices such as a mouse, keyboard, USB flash drive and printer. Includes 4 1.2m KVM cables, VGA and USB cables 2 in 1.2. EASY TO USE: You can easily switch between the 4 computers with the panel buttons and see which computer you are using with the LED indicators. Plug and play, no software or external power adapter required.3. 1920x1440 RESOLUTION: The USB VGA KVM switcher supports up to 1920 x 1440 resolution super widescreen display, supports DDC and automatic recognition of premium outputs, backward compatible with lower resolutions.4. HIGH COMPATIBILITY: USB VGA KVM switcher selector is suitable for Windows 10 8 7 XP, for Linux, for Sun, for OS X. Widely used in office, multimedia teaching, conference room, game room, home theater and so on.5. COMPACT AND EXQUISITE: Small size design does not take up desktop space. Everything you need is included in the package, such as 4 special USB VGA KVM cables (2 in 1). Please plug the VGA cable with USB pigtail into your computer port.Specification:Item Type: USB VGA KVM SwitchMaterial: ABSCable Length: Approx. 1.2m / 3.9ftColor: BlackInput: Up to 4 PCsOutput: 1 x VGA Port and 3 x USB 2.0 PortsMaximum Resolution: Supports 1920 x 1440.Package List:1 x USB VGA KVM Switch4 x USB VGA KVM CableNote:1. Do not connect the VGA cable in reverse. Computer connection with USB port, and connect the single VGA head to KVM. If connected in reverse, the machine will be burned directly.2. Manual measurement, please allow some errors.