Rapid jumper wire 40 way ribbon cable rapid rw d40 mf these high quality jumper wires come in a strip of 40 with four pieces of each of ten colours they have 01in female sockets at one end and male sockets at the other and fit cleanly next to each other on a standard pitch 254mm header you can always pull the ribbon wires off to make individual jumpers or keep them together to make neatly organised wire harnesses rapid rw d40 mf jumper wire ribbon dupont cable m f 40 way ribbon 200mm