This is the 3rd generation (G3) F4 Flight Controller from Hobbywing.

Updates over the previous version include the new edition of a 12V 2A BEC for powering FPV gear and auxiliary accessories, a PIT switch for controlling a VTX, revised LED output which supports WS2812B LED strip without requiring a CLI command, revised VTX connection which supports both a plugin connection or direct solder. There's also plug and play support for the new XRotor 60A 4-in-1 ESC providing a clean and easy installation for your next build.

Features:

Super-high Running Frequency
STM32 F405 MCU allows the FC to run the PID looptime and gyro refresh frequency at 32KHz.
DShot 150/300/600/1200, Oneshot125, Oneshot42, Multishot Modes Supported
Besides the latest Dshot 150/300/600/1200 mode, the FC also supports the regular PWM mode, Oneshot125 mode, Oneshot42 mode and Multishot mode.
Multiple Rx Protocols Supported
Compatible with various receivers likes SBUS, SUMH, SUMD, SPEKTRUM 1024/2048, XBUX, PPM, etc.
TF-card Insertion Supported
Use a micro SD card to record flight / back box data to assist with tuning and diagnostics.
Onboard OSD Microchip
Onboard OSD microchip allows users to easily adjust various (OSD) parameters via the Betaflight/Cleanflight software.
BetaFlight/Cleanflight Firmware Ready
The FC which supports Betaflight/Cleanflight firmware & allows parameter adjustment via Betaflight /Cleanflight software is more applicable to FPV flying & racing.
Onboard 12V BEC
Use the onboard BEC to power FPV gear and auxiliary accessories.
Onboard PIT Switch Module
The PIT switch can be used to remotely turn on / off your VTX.
Stack neatly with the Hobbywing 4IN1 ESC
It’s easy to wire and install when pairing the FC with a Hobbywing 4-in-1 tower 60A ESC.

Application: FPVs with 130-300mm FPVs Diagonal Wheelbase
Firmware: OMNIBUSF4SD
FC Programming: Supported
Programming via: Betaflight/Cleanflight-configurator or Others
Compatible with (Modes): PWM, Oneshot125, Oneshot42, Multishot, Dshot150, Dshot300, Dshot600, DShot1200, Proshot1000 and etc
Compatible with (Transmitters): PPM, Spektrum, SBUS, SUMD, SUMH, XBUS, IBUS, JETIEXBUS, CRSF, SRXL, and etc.
OSD: Built-in
BEC: 12 V at 2 A
Voltage Monitoring: Supported
Current Monitoring: Supported
External Buzzer: Supported
LED Control: Supported
USB Port: MicroUSB
Timing: Supported
Motor Rotation: Supported
Size: 36x36 mm
Mounting Holes: 30.5x30.5 mm
Weight: 6 g