305 Series (.156" (3.96mm) contact spacing) Card Edge Connector with 20 P.C Tail type contacts. The tails are .046" x .013" (1.17mm x 0.33mm) and .213" (5.41mm) long in a Double Row formation. The Insulator is Green in color with a .295" (7.49mm) deep Card Slot and No Mounting Lugs.