Naze32 Acro rev 5 is the all time classic of flight controllers and that's why we have to offer it here. The STM32F1 CPU is still up to the task and more than enough for typical FPV flying. If you ask how does it compare to the equally classic CC3D, here is our answer: Naze32 is easier to connect to PC (no need to have to power up the copter), CC3D handles S-Bus better. We offer both of them. The choice is yours!