The SV231DVIUA 2-Port DVI USB (Universal Serial Bus) KVM Switch lets you control two USB (Universal Serial Bus)-enabled DVI-capable computers from a single monitor & peripheral set (keyboard mouse & speakers) & two additional USB (Universal Serial Bus) peripherals connected through the built-in USB (Universal Serial Bus) hub ports. Featuring convenient hot-key & front panel push-button switching & high-resolution support (up to 1920x 1200) the DVI KVM Switch is perfect for controlling high-performance systems. Ideal for multimedia applications this KVM switch supports audio & microphone switching either independently or simultaneously when switching between computers for KVM control. The DVI USB (Universal Serial Bus) KVM also features an integrated USB (Universal Serial Bus) 2.0 hub which lets you share USB (Universal Serial Bus) peripherals point as if they were connected directly to the slave computers. Backed by 3-year warranty & free lifetime technical support The Star Tech.com Advantage Integrated USB (Universal Serial Bus) 2.0 hub & Mic/ Audio switching allows the user to have full multimedia control of two computers & share USB (Universal Serial Bus) peripherals eliminating the expense of duplicate devices High resolution support (1920x 1200) offers crystal clear video clarity even on large displays Absolutely no software or drivers required providing a completely OS independent KVM solution.