The B004-DUA2-K-R is a 2-Port DVI/USB KVM Switch with audio and USB 2. 0 peripheral sharing. It allows you to access, control, boot and reboot two computers from a single USB keyboard, USB mouse, and monitor. Switching between connected computers is quick and simple using keyboard hotkeys or pushbuttons. An independent audio/mic and USB peripheral switching function allows for an uninterrupted experience. A computer can be printing on a printer connected to one of the USB 2. 0 peripheral ports, while you listen to audio from and access another computer; all at the same time. The B004-DUA2-K-R uses DVI-I technology, allowing for the transmission of a digital (up to 1920 x 1200) or analog (up to 2048 x 1536) signal. A DVI to VGA adapter, such as Tripp Lite\'s P126-000, is required for conversion to an analog monitor. Whichever you use, full time DDC support provides the necessary EDID information required for optimal video performance on Windows 7 and other operating systems. Compatible with all major operating systems. Fast, easy switching via keyboard hotkeys or pushbuttons Plug-and-play setup - no software required Hot-swap capability allows easy addition or removal of computers without powering down the switch or other computers Speaker and microphone connections allow for the sharing of audio components between systems Independent audio/mic and USB peripheral switching function allows for an uninterrupted experience. A computer can be printing on a printer connected to one of the USB 2. 0 peripheral ports, while you listen to audio from and access another computer; all at the same time. Supports 2-Channel Stereo Audio Features two USB 2. 0 ports for the sharing of USB peripherals (e. g. flash drives, printers, etc.) between the connected computers Uses DVI-I technology, allowing for the transmission of a digital (up to 1920 x 1200) or analog (up to 2048 x 1536) signal. A DVI to VGA adapter, such as Tripp Lite\'s P126-000, is required for conversion to an analog monitor.