Pre-Wired Double Row Connectors Mill-Max Pre-Wired Double Row Connectors come in both spring-loaded and target versions with 4 to 20 positions available. These double row connectors feature a pre-crimped design that eliminates time-consuming and labor-intensive crimp and poke-style connectors. The open-end wire provides flexible termination possibilities such as soldering, splicing, crimping, or connecting to a terminal block.