The Tarot Electronic Retractable Landing Gear Control System Controller TL65B43 is compatible with Tarot 650/ 680/ 690 and some other quadcopter or hexacopter modification (there are preinstall holes on some the same type of multicopters). You just need to connect it with receiver channel which you use to control the retractable landing skid through Y wire, and then you can use it, no need the electronic retractable landing skid controller board. The exclusive motor has reliable performance. The main feature of it is light in weight, easy in design, convenient to install, small place to take up and etc.
16mm metal connector for carbon fiber tube x 1 (40x17x27mm)
Small electric landing gear control system controller x 1 (66x22x24mm)
Carbon fiber plate x 1 (66x39x1.7mm)
M3 x 6mm screw x 2
M2 x 6mm screw x 4