Abstract: A power connector system having a right-angle type plug connector or a straight type plug connector engageable with a header connector. The right-angle type plug connector is a plug connector having a mating direction, which is 90 degrees from the centerline of the cables exiting from the plug connector. The straight type plug connector is a plug connector having a mating direction, which is parallel to the centerline of the cables exiting the back of the plug connector. The header connector holds at least a female receiving terminal or receptacle made of a high electrical conductivity material. The female receiving terminal or receptacle includes fingers that extend parallel to each other, and are spaced apart from each other, and further includes a reinforcing spring member. The plug connector holds at least a male rectangular tab terminal, the male rectangular tab terminal having a short edge and a long edge.