LDO MCU breakout / Extruder breakout board / harness
Each part is listed separately, for a complete harness you will need one MCU, one Extruder and one harness (1.9m or 2.1m)
1.9m = Voron 300mm
2.1m = Voron 350mm
LDO toolhead harness docs
to use this on Stealth Burner, follow directions here