This cable is intended to be used with WX3in1 Mini and older WX3in1 Plus. If you need a cable for WX3in1 Plus 2.0, then you should order cable without B.
This cable allows you to connect WX3in1 Mini to Kenwood TM-281 using RJ-45 microphone connector + speaker 3.5mm jack.
Cable length: around 50-60 cm.
Cable schematic: download