For high-performance DVI switching, the following models are frequently recommended for their reliability and feature sets: IOGEAR 2-Port DVI KVMP Switch (GCS1102)

ConnectPRO UD-12+KIT 2-port USB DVI KVM switch w/ DDM & multi-hotkey ConnectPRO& more Go to product viewer dialog for this item.

This model is highly regarded for its technology, which eliminates switching lag by maintaining a constant communication link between the shared devices and connected computers. You can find it at ConnectPRO for about $192.91. Tripp Lite 4-Port Dual Monitor DVI KVM Switch $574.06$638 All Data Resource& more Go to product viewer dialog for this item.