The M20-6113245 is a 64-contact 2-row 2.54mm female PC/104 Non-stackthrough Connector with UL94V-0 high temperature nylon 6T moulding and gold over nickel plated phosphor bronze contact. The M20 series receptacle has solder tails, vertical connector orientation, PC tail/through board connection type, side stackable and top entry style. It is suitable for use with 0.64mm square mating pin size. Industry-standard connector system used in PC/104 Embedded PC module stack applications. The PC/104 module stack is designed to use less space and at a lower cost than an equivalent backplane system, by utilising stackthrough connectors to interconnect PC boards within a stack. Standard height between module boards is 0.6" (15.24mm).