The B004-VUA2-K-R is a 2-port Compact USB KVM Switch with optional audio and microphone switching function. It allows you to access, control, boot and reboot two USB-enabled computers from a single console (keyboard, monitor and mouse). The independent audio/mic switching function allows an uninterrupted audio experience - you can continue listening to audio even when you switch to the other computer.It includes innovative, easy-to-use KVM Switcher Software for Windows® and Macintosh® platforms. A small client application facilitates your KVM switching operations such as computer selection, hot key sequence programming, auto-scanning, auto-scan delay time programming, independent or simultaneous audio/computer switching and more.