Black Box ServSwitch DT Dual-Head DVI KVM SwitchBlack Box ServSwitch DT Dual Head DVI USB KVM Switch The Black Box ServSwitch DT Dual Head DVI USB 4 Port KVM Switch is engineered for professionals who demand seamless control of multiple multimedia computers from a single console. Designed to deliver crisp, color accurate video and reliable input switching, this KVM switch makes it possible to manage four separate systems without swapping cables or monitors. With dual head DVI support, you can drive