StarTech.com 4 Port DVI USB KVM Switch with Audio and USB 2.0 Hub (SV431UADVI) Built-in 2-port USB 2.0 device hub for sharing high-speed USB devices USB 2.0 Specification compliant Eliminates the need to buy expensive flat panel display monitors for all computers 4-port DVI USB KVM switch with audio and microphone switching and 2 x USB 2.0 hub ports USB keyboard and mouse support USB 2.0 Specification compliant DVI interface technology supports digital video signal transmission Independent/simultaneous USB hub port, audio &amp; mic channels and PC port selection