... Octo, X8, Y6T, TwinQuad, TwinHexa, 12 Motors KK V5.5 Upgrade Multicopter Flight control board/Controller OCTO X8 100% brand newKKmulticopter ... to the FlyCam Naviboard and GPS. Features:- Can remote control multicopters with up to 12 rotors- Simple structure, KKmulticopter ... is easy to Maintain and Debug Control- With 3 pcs gyros, relying on potentiometer adjust gyro ...