Full Details from Amazon.com : http://www.amazon.com/gp/product/B0000DBMKK?tag=onigi-20

Logitech Quickcam Orbit WebCam

Always stay in the frame thanks to the automatic face-tracking software and mechanical pan and tilt feature
Record high quality videos at true 640 x 480 resolution with the high-quality CCD sensor
Capture 13 megapixel photos
Works with both USB 20 and 11
Compatible with Windows 2000 Me XP and Mac OS 1015 to 1026