USB connectors are used with universal serial bus (USB) ports.

Military (MIL-SPEC) connectors are built in accordance with military specifications.

Tube fittings connect runs of tubing for in-line, offset, multi-port, and mounting configurations to other tubing sections, pipe, hose, and other fluid transfer components

RF and microwave connectors are used to connect the ends of cables in systems that operate in the radio frequency (RF) or microwave spectrum.

Micro connectors and nano connectors exhibit contact pitches of 0.

Circular connectors are multi-pin connectors primarily used for external interfacing

Coaxial connectors are composed of an insulated central conducting wire wrapped in another cylindrical conductor (the shield).