This 4-Port DVI+USB KVM Switch with Audio & USB (Universal Serial Bus) 2.0 Hub means that you can control 4 USB (Universal Serial Bus)-enabled multimedia computers with DVI video interfaces, using only one USB (Universal Serial Bus) keyboard, mouse, monitor & a set of speakers & microphone. A cost-effective & versatile KVM solution, the DVI+USB KVM switch features an integrated, 2-port USB (Universal Serial Bus) 2.0 hub that lets selected computers access shared high speed USB (Universal Serial Bus) devices, eliminating the cost of duplicate USB (Universal Serial Bus) peripheral purchases. The DVI KVM switch supports audio & microphone switching functions & means that you can select connected computers, USB (Universal Serial Bus) device hub ports & audio/mic channels either simultaneously or independently, using either front-panel push-buttons or keyboard hotkeys. Ensuring high quality video capability, the DVI KVM switch supports display resolutions of up to 1920 x 1200, & offers genuine digital signal transmission over the cable, reducing the distortion thats common from conventional analog/digital conversion. Star Tech.coms 4-Port DVI+USB KVM Switch with Audio & USB (Universal Serial Bus) 2.0 Hub is designed for durability & dependability. Please note: networking components such as switches, routers, KVM & wireless devices require that speeds & standards be consistent throughout the network to gain optimum performance. To avoid compatibility clashes or for advice, please contact us on solutions@ebuyer.com.