RioRand RR-A2212 980KV Brushless Motor for DJI 330 F450 F550 X525 & DIY RC Quadcopter Hexacopter Multicopter (4pcs) Powered by RioRand Advanced Technology KV: 980; Internal resistance 120m Max Continuous current(A) 180S 14.5 Max Continuous current(W) 180S 160 Max efficiency current (4-9A)80%