The T-Motor VELOX Lite F411 Flight Controller is a mini and budget-friendly flight controller that is equipped with 5V 2A BEC, AT 7456E OSD chip, and 8M black box. This FC supports 20x20mm and 30.5x30.5mm installation holes. 
Specifications:-
 Main Control: STM32F411
Gyroscope: BM270
Black Box: 8MB
OSD Chip: AT7456
BEC:5V 2A
Weight: 5.3g
Mounting Hole: 30.5mm, 20mm