AMPLIMITE, HD-20 Full Metal-Shell Right-Angle Posted, 545 PCB Mount D-Sub Connectors AMPLIMITE, HD-20 right-angle posted, 545 (13.84 mm footprint) PCB mount D-sub connectors with a full metal tin plated steel shell. These AMPLIMITE HD-20 PCB mount plug and socket connectors are available with standard mounting screws or 4-40 female screwlocks for connection to mating connectors, 0.00076μm or gold flash on mating contacts (Please refer to datasheet for details). The d-sub plug connectors have grounding indents.