The HoverCam uses one single USB to connect to any computer and uses their Flex 11 software for use. The app can be freely downloaded and installed here.
Flex 11 is incredibly capable, offering live annotation over the live image; as well as the ability to take photos and video footage easily. Slow motion and time-lapse videos are great additional features, as is the ability to adjust the image for brightness, exposure and focussing.
Intro to HoverCam's Solo Series
Flex 11 Software Overview
Adjusting the Camera Image
Focusing the Camera Image
Zooming In and Out
View Options with Picture in Picture
Taking Snapshots
Annotation Wheel