This KVM switch help to control 2 signal sources easily by only one set USB keyboard & mouse. Save space, power, and device costs, so that can centrally control and manage two PC host / game consoles without having to move from one workstation to another. NoteIt is not recommended to use an illuminated mechanical keyboard, because the illuminated mechanical keyboard consumes too much power and may cause the mouse and keyboard not to be recognized. KVM switch with 2 extra USB 2.0 standard hub port which can recognize bar code scanner, USB hard drive, printer, scaner, or other USB devices. Please note that this KVM switch not compatible with a HD Webcam well, so we don't recomand a USB Webcam which resolution higher than 720p connect to our product. Please note that this KVM switcher support button switch and remote control switch mode, not support keyboard hotkey.