Control 4 DVI USB-equipped PCs with a single peripheral set with USB Dynamic Device Mapping to avoid switching lag-timeThe 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 overall compatibility with your connected display and input devices saving you time and money.For the next level in KVM performance this DVI KVM switch integrates dual-core dedicated processing per channel and innovative USB DDM technology that enables you to quickly switch between connected computers with next-to-zero delay. DDM maintains a constant communication channel between your USB peripherals and connected systems avoiding the time necessary for your systems to re-recognize the devices when switching.In addition to faster switching the KVM offers All-time Display Data Channel (Full DDC) technology to maintain proper display detection among connected systems a simple one-touch button for hot-key selection and an integrated 2-port USB hub allowing you to share additional peripherals.Backed by a StarTech.com 2-year warranty and free lifetime technical support.The StarTech.com Advantage- Switch between devices with minimal lag through fast-switching DDM technology- Instant setup and operation with included KVM cables- Near universal compatibility with all USB input devices through USB DDM Ports