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. To connect to a HDMI monitor a DVI to HDMI adapter such as Tripp Lite's P132-000 is required (Audio is not supported when converting from DVI to HDMI). Full time DDC support provides the necessary EDID information for optimal video performance on Windows 7 and other operating systems Supports Microsoft IntelliMouse and the scrolling wheel on most mice (x2) 1.22 m USB cables and (x2) 1.22 m DVI + Audio KVM cable kits included Compatible with all major operating systems Control 2 computers with a single DVI monitor USB keyboard and USB mouse Switch ports via keyboard hotkeys or pushbuttons Allows for the sharing of audio components between systems; listen to music from one computer while accessing another Features two USB 2.0 ports for the sharing of USB peripherals between the connected computers (x2) 1.22 m USB cables and (x2) 1.22 m DVI + Audio KVM cable kits included Full time DDC support provides the necessary EDID information for optimal video performance on Windows 7 and other operating systems Compatible with all major operating systemsSystem Requirements KVM Console: A DVI monitor USB keyboard and USB mouse Computers: DVI-I port (P118-000 DVI-I to DVI-D Adapter is required for computers with DVI-D ports) and USB Port Audio (Optional): A microphone and speakers with 3.5mm Mini-Stereo connectors and a computer with 3.5mm Mini-Stereo ports Compatible with all major operating systemsPackage Includes B004-DUA2-K-R (x2) 4 ft. DVI-I + 3.5mm Audio Cable kits (x2) 4 ft. USB A-B Device Cables Owner's Manual External Power Supply with NEMA 1-15P Plug (Input: 100-240V 50/60Hz 0.4A Output: 5V 2A)