Mainboardsx3128bv4 MainboardDimensions and StructureOn this pageDimensions and Structure Core Board Appearance Core Board Mechanical Drawing Mechanical Parameters PackageCastellated-hole moduleCore Board Size45mm x 45mm x 3mmPin Pitch1.2mmPad Size1.8mm x 0.7mmPin Count144 pinsPCB Layers6 layers Baseboard Appearance