8 pin Acom 'S' series band control cable Yaesu FT-857 FT-991(A) FT-710 etc.
The cable assembly has a DE15 male plug which connects to the Acom's CAT/AUX socket and a 8 pin mini DIN male plug which connects to the transceiver's CAT/LIN socket. For use with Acom 'S' series amplifiers, for example.