Do you have a question about the IOGear 8-Port DVI KVMP Switch and is the answer not in the manual?
Connecting a single DVI-I monitor to the DVI console port.
Connecting a dual-interface monitor to both DVI and VGA ports.
Connecting separate DVI and VGA monitors to their respective ports.
Connect keyboard, mouse, monitor, and front panel audio to the KVM.
Link the first stage KVM unit to the console ports of the second stage unit.
Connect computers to the KVM ports of the second stage unit.
Details on cabling and the correct power-on order for three-stage installations.