Tenergy A pair of Molex 51021 2 Pin Female and Male Connector for MCX Batteries A pair of high quality Molex 51021 2 Pin Female and Male Connector. Good for Blade MCX, ParkZone Micro Cessna, Citabria and Etomic Vapor 7.5" 28 Gauge silicone wire With pre-coated soldering for easy soldering