Holybro Pixhawk 6X Flight Controller Set with PX4 Autopilot Pre-Installed High Quality Power Module Advanced
Amazon.com: HAWK'S WORK F450 Drone Kit to build, Frame + Pixhawk + GPS + Power Module + ESC + Brushless Motor + Prop + Battery + Accessory + Guild Book & Video (Set B) : Toys & Games
DJI NAZA M V2 Multirotor Autopilot Controller set with GPS
Beginners guide to drone autopilots (flight controllers) and how they work - Guides - DroneTrest