StarTech.com KVM Switches and Accessories - StarTech.com SV231USBDDM, The SV231USBDDM 2-Port USB VGA KVM Switch from StarTech.com lets you control 2 VGA, USB-equipped PCs using a single peripheral set at high-definition VGA resolutions up to 1920 x 1440.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 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 VGA KVM switch integrates multicore dedicated processing per channel and innovative, USB DDM technology that enables you to 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 recognize the devices when switching.The KVM also 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.It is backed by a 2-year warranty and free lifetime technical support. StarTech.com SV231USBDDM 2 Port VGA KVM Switch w/ DDM Fast Switching