This connector is specifically designed for HPA engines, providing a stable connection within the gearbox skeleton. Its unique design prevents the connector from coming loose, unlike standard connectors. The IGL coupling also prevents overload on the HP motor. Some features of this 20 cm connector include a US QD male connector, 1/8NPT thread, and a braided polyester fibre (PES) covering with a max working pressure of 300 PSI..