357 Series (.156" (3.96mm) contact spacing) Card Edge Connector with 44 P.C Tail type contacts with gold plating on the contact area. The tails are .046" x .014" (1.17mm x 0.36mm) thick and .213" (5.41mm) long in a Single Row formation, reading both sides of the daughter board. The Insulator is Black in color with Ø.156" (Ø3.96mm) Mounting Holes .