Serial Bus Power Cable used to connect the serial ports of the SE2/4/6 and EX5 Servo Channel Expanders.
Expander cable maximum rating 18A (Positive/Negative 17 AWG/1mm2, Signal 20 AWG/0.5mm2) of the silicone wire.
This is a Heavy Duty MR30 Female to Female connection that carries ground/power/signal.