IDC wires and connectors - An IDC connector is an electrical connector designed to connect to insulated wires placed tightly together as a ribbon. IDC connectors can be crimped onto wires without stripping the insulation, using special crimping machines. When properly made, the connectors fuse with the conductors in the cable, creating a theoretically reliable, leak-proof connection. A set with an IDC connector forms what is called a tub connector, sometimes called an edge connector. This is a type of multi-pin pin connector that easily connects multiple signals together.