This jumper wire female headers on both ends. On one end the female header is designed for 2.54mm spacing, and on the other end, the female header is designed for 2mm spacing. It is ideal for connecting 2.0mm spacing headers to 2.54mm spacing headers. Used in LED screen outside the wiring harness inside the wiring harness, communication wiring harness, lamps, wiring harness, wiring harness design etc. Harness design, processing: processed automotive wiring harness, wiring harness heat appliance wiring harness, single harness, cable, computer wiring harness.