Tripp Lite B004-VUA2-K-R 2-Port Compact USB KVM Switch with Audio and Cable

Fast, easy switching via keyboard hot keys, push buttons or software
Plug-and-play setup - no software required
Hot-swap capability allows easy addition or removal of computers without powering down the switch or other computers
Speaker and microphone connections allow sharing of audio components between systems (standard 3.5 mm audio connections)
Independent audio switching allows you to listen to audio from one computer while switching to the other computer
Supports video resolutions up to 2048 x 1536 (standard 15-pin VGA connectors)
Supports Microsoft® IntelliMouse® and the scrolling wheel on most mice]
Compact design saves desk space
Does not require an AC adapter
Compatible with all major operating systems
Includes two, 6-ft. (1.83 m) Cable Kits