Connectors broadly divide into two types based on the design of the wiping contacts: pin/socket and ribbon-style. In pin/socket connectors, a round or square profile pin wipes against a socket contact formed of bent metal to make a complete circuit. However, in .050” pitch and smaller, the pins become fragile and more prone to breakage. For this reason, most high density, high speed I/O connectors are of the ribbon-style design. The precise geometries of the pre-loaded ribbon contacts ensure reliable connection, while the supporting insulator reduces the risk of damage during insertion and withdrawal, even in sub 1.00mm versions.