<< Video-in consitutes for example, pluggin in a digital camera >>
A digital camera interface is not normally considered "video-in", video-in generally consists of a connection between a video card and an analog video source such as s-video, composite or coaxial to a VCR, camcorder cable TV or Satellite dish, usb connectors and firewire are generally considered ports(can hook a variety of devices) and are not generally found on a video card.