SPF3 Flight Controller ACRO SP-F3 only USD $18.90
An F3 processor allows for faster communication and calculation speeds which translates to faster and better performance. Has built in memory for blackbox recording, built in osd and top of the line sensors.
Comes with Cleanflight flashed to it but can run the uber popular Betaflight or Raceflight firmwares.
Supports passthrough esc programming with blheli for almost any esc on the market.
36x36mm board with 30.5mm mounting holes