This Monkey King RC adaptor plug converts an EC5 female connector to an XT90 male connector, letting you run an XT90-equipped battery in a vehicle wired for EC5. It is a single solid adaptor unit with no loose wires, keeping the connection compact and straightforward. A practical solution when your battery and ESC or vehicle harness use mismatched connector standards. Features: EC5 female input to XT90 male output No-wire inline adaptor for a compact connection Compatible with high-current LiPo battery setups 7/7/26 cs