Designed to connect a Ground Power Unit to another SB-50 external power receptacle found on experimental aircraft. It can also be used as an extension cord for any 12/14V ground power unit. Rugged polycarbonate shell, assembled with stainless steel hardware. Torch-soldered heavy-duty copper contacts with silver plating. Up to 0 AWG wire. 50% more power handling. Up to 1600A peak.