USB, DVI, and HDMI Connectors are devices most often used to provide a connection port between a computer and some other device for audio and video interface. The characteristics being connector type, number of contacts, gender, mounting type, current rating, and voltage rating. The connector types are DisplayPort, DMS-59, DVI- (A, D, or I), Firewire , HDMI (micro, mini), and USB (A, B, C, micro, mini) .