QWinOut 5V 12V Power Distribution Board PDB with Built-in Power Filter for Robocat 270mm 4-Axle Quadcopter Frame Special PDB with LED for Robocat 270mm frame kit / Power Distribution Board / 5V 12V BEC with Built-in Power filter Comes with 5V 12V BEC Comes with power filter, it helps clean up dirty DC current that often causes lines in wireless video images. The filter is an LC type that uses large value inductor and capacitor components. Compatible with any flight controller like KK CC3D Naze32 etc