4-Port 2-USB Audio Switch Black/Silver

"Superior video quality - up to 2048 x 1536; DDC2B Computer selection via front panel pushbuttons and hotkeys Auto PS/2 and USB interface detection - dual interface supports computers with PS/2 or USB keyboards and mice 2 port USB Hub built in and bus-powered design" CS1734A KVM Switch has built-in USB on each of the front and rear panels and audio signal connectors. It allows users to control the computer and peripheral devices via a signal console at ease. "One USB console controls 4 computers and two additional USB devices 2 port USB Hub built in Dual interface supports computers with PS/2 or USB keyboards and mice Multiplatform support: compatible with all operation platforms PC (Windows, Linux and most others), Mac and Sun With speaker and microphone support" "Auto PS/2 and USB interface detection Buzzer On/Off via hotkey Keyboard and mouse emulation for error free booting Computer selection via front panel pushbuttons and hotkeys Superior video quality - up to 2048 x 1536; DDC2B Firmware upgradable"