ITEM NAME:Profession PDB Power Distribution Board for NAZE32 CC3D OSD QAV250 Accessory Profession PDB Power Distribution Board for NAZE32 CC3D OSD QAV250 Accessory a.imagelink a:hover.imagelink {color:#000000;.Naze32 CC3D PDB PCB Power Distribution Board 5/12 BEC Buzzer LED For QAV250. With OSD port. Battery connections pads. ESC power and signal solder pads. pealse be aware of this before placing your order.