379-052-520-201 Standard Card Edge Connectors 379 Series (.150" (3.81mm) contact spacing) Card Edge Connector with 52 P.C Tail type contacts. The tails are .030" x .018" (0.76mm x 0.46mm) thick and .175" (4.45mm) long in a Double Row formation. The Insulator is Black in color with No Mounting Lu