B004-VUA2-K-R The B004-VUA2-K-R is a two-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. Compatible with all major operating systems