1, bar/pressure connector
2, circular connectors
3, rectangle/heavy duty connector
4, RF coaxial connectors
5, PCB/printed circuit board connector
6, wire to wire connectors
7, FFC/FPC/film cable connector
8, flat cable connectors
9, computer connector
10, video/audio signal connector
11, cell phone connector
12, power connector
13, high voltage connectors
14, automotive connectors
15, air connectors
16, for high speed signal link
17, fiber optic connector
18, for microwave links
19, waterproof connectors
20, high temperature resistant connectors