Full Details from Amazon.com : http://www.amazon.com/gp/product/B0055QPJUU?tag=onigi-20
C2G / Cables to Go 35568 Trulink 4-Port VGA/USB 2.0 KVM Switch with Audio
Supports video resolutions up to 2048 x 1536 pixels
Supports Microsoft Windows 98 98SE 2000 ME XP Vista7 Mac OS 9X Linux and Sun Micro OS
Features autoscan and auto switch
Offers over current protection
Compatible with USB 20 specification