The Lectrosonics MC41 is a 37 inch cable - female XLR to female TA5F 5-pin wired for mic level input to transmitters (3k resistor in audio line). Works with early 5-pin inputs as well as servo bias inputs on the newer "a" series transmitters (e.g., SMa, SMQa, SMDa, UM400a, UM450 and LMa). Adapter cable, 37", mic level, XLRF to TA5F for all 5 pin transmitters.