US Patent 11522308 Board-to-board connector

A connector is mounted on an input-output board. The connector is interposed between the input-output board and a CPU board, and thereby a plurality of pads of the input-output board and a plurality of pads of the CPU board are respectively electrically connected. The connector includes a rectangular flat-plate housing having a first positioning hole and a second positioning hole, and at least one contact row held on the housing. The first positioning hole is formed at a first housing corner part of the housing. The second positioning hole is formed at a fourth housing corner part, which is at a diagonal position with respect to the first housing corner part, of the housing.