Right. 22 pins on both sides, almost 2 mm wide each, as well as the gaps between them. The small boards are about 7 cm x 7 cm, while the bigger one is 7 cm x 9 cm. The boards have two holes in them at the sides, diameter 6 mm, about 5 cm away from the connector edge. The traces seems to be gold. I don't have pictures of them yet.