This four-port USB KVM switch enables you to access four CPUs with high-resolution DVI video connectors from a single workstation. Set up desktop KVM switching with high-quality DVI-D video. The ServSwitch DT DVI 4-port with USB 2.0 Transparent supports full DVI at resolutions up to 1920 x 1200 at 60 Hz. Plus, you can fine tune the signals, depending on signal strength.