The ERF8 series from Samtec are 0.80mm (0.0315") Edge Rate® rugged high speed socket strips. Samtec's Edge Rate® contact system is designed for high speed, high cycle applications. The surface of the Edge Rate® contact is milled creating a smooth mating surface area instead of a stamped contact that mate on a cut edge. This smooth mating surface reduces the wear tracks on the contact increasing the durability and cycle life of the contact system. It also lowers insertion and withdrawal forces allowing the connectors to be zippered when unmating.