Control 4 dvi usb equipped pcs with a single peripheral set with usb dynamic device mapping to avoid switching lag time the sv431dviuddm 4 port usb dvi kvm switch lets you control 4 dvi usb equipped pcs using a single peripheral set at high definition dvi resolutions up to 1920x1200 the included kvm cables provide a ready out of the box solution while usb dynamic device mapping ddm and display data channel ddc features work to significantly reduce switching lag time and improve over