I've got two MK FC 2.5 flight control boards available for sale One is zero time, the other has maybe an hour of flight time on it. $275 each, shipped in the US. I also have a couple of NAVI/GPS boards, 7 individual BL 3.x motor controllers, 2 FC 2.1's, and a bunch of individual BL 2.x controllers that will all be listed in the coming days. Thanks! Bart