Castle Creations QuadPack 25, 25-Amp Multi-Rotor ESC (4) Pack, 1 with 8-Amp BEC (CSE010013200)

Connector: EC3 Device and EC3 Battery Set (EFLAEC303) - E-flite | RC-LEADER

Connector: IC3 Device and IC3 Battery Set (SPMXCA301) - Spektrum SMART | RC-LEADER