Product Description: Multi-Layer Printed Circuit Board, Multi-Folded Printed Circuit Board, Multi-Sided Printed Circuit Board, or Multi-Layer PCB as it is commonly known, is a powerful and reliable tool for connecting electrical components. It is a highly reliable type of printed circuit board that has multiple layers of copper traces with insulation layers between them. This type of board has a surface finish such as HASL and can have CNC V-Cut for added precision. Impedance