This is a 4ft well shielded high quality cable that  incorporates  a  XLR  to 8 pin round or  modular rj45  mic connector.  For use with ELECRAFT,FLEX,KENWOOD,TEN TEC, ICOM orYAESU   transceivers . .This cable allows  the use of any microphone that has a 3 pin xlr and can be run with 5-9 volts [like a computer mic ] to be directly connected to the transceiver . . Cable comes with 8 pin round or modular rj45 not both  . Comes with ptt jack the  switch is optional ..Upon ordering You must E-mail me your transceivers model #