307 Series (.156" (3.96mm) contact spacing) Card Edge Connector with 12 P.C Tail type contacts with gold plating on the contact area. The tails are .023" x .013" (0.58mm x 0.33mm) thick and .213" (5.41mm) long in a Double Row formation, reading both sides of the daughter board. The Insulator is Green in color with ∅.128" (∅3.25mm) Mounting Holes.