This system card is for programming HobbyWing brushless aircraft ESCs.
it really works using the after HobbyWing services and products:
FlyFun series, SkyWalker show, Guard series (discontinued), and Sword show (discontinued) of brushless aircraft.
Note: this program card doesn’t make use of Platinum series of brushless aircraft ESCs.
Size: 88x58x14mm(LxWxH);
body weight : 40g
Input Voltage : 4.8V—6.0V(a split battery is necessary for powering the program package when ESC doesn't have built-in/external BEC)