The Blitz Mini F7 E55 is a combination of flight controller and ESCs. Thanks to the F7 processor and especially the powerful 55A ESC, it is suitable for 5" freestyle or racing drones powered by 3-6S batteries.
The flight controller is based on the F722 processor combined with the ICM42688 gyro. For altitude measurement, a DPS310 barometer is integrated on the board. There are I2C pads so that a compass can be connected. There is 8MB of memory for the blackbox. There is a connector on the board for easy connection of the DJI FPV/DJI O3 unit. However, there is also an OSD chip for classic analog video.
The ESCs use the BlHeli_S firmware. The ESC also includes a current sensor. Its main advantage is the powerful MOSFETs that support current up to 55A (60A short term).