NOTE:BECAUSE STM32F722 HEAT LARGE , PLEASE LEAVE AT LEAST 5MM INTERSPACE AT BOTH SIDES OF THE FC WITH NOTHING COVERED TO MAKE SURE A GOOD AIR CIRCULATION.
Diagram Link From Help Centre Link
FIRMWARE TARGET : MAMBA F722
The Stack can fit both M2/M3 Mounting hole Framekit (Adaptor inside)

FC Specifications
MCU: 216MHz STM32F722RET6 32BIT
IMU: MPU6000
Baro: No
OSD: BF OSD
Uarts: 6Set
ESC Soft: Dshot300/600/
LED: Blue&Orange for FC Status,,White 5V,Red 3.3V
WS2812 LED Control: BF LED Control
Smartaudio: Yes
RSSI: Yes
Buzz: Yes
Input: 2~6S Lipo (8.4~25V)
VTS Protection: Yes
UARTS:6 Ports
DJI PORT SUPPORT
BEC: 5V 2A&9V 1.5A
FC Firmware
BetaFlight
Target: MAMBA F722
Mounting: 20×20mm,Φ2
Dimensions: 30×36.5×13.5mm
Weight: 3.9g
Mamba F40MINIPRO ESC
Item name: Mamba F40MINI PRO ESC
Input voltage: 3-6S LIPO (12.5- 25V)
Burst Curr :40X4 A
MAX:45A(10S)
BEC: NO
Mounting Size: 20mm/M2/M3
Size:31×31×6.5mm
Mounting Hole: M2 M3
Weight: 7g
Package Included:
1 x Mamba F722 Mini DJI Betaflight Flight Controller
1 x Mamba F40 MINIPRO 6S HV ESC