More than 30 years ago, Russellstoll® offered the first pin and sleeve connectors that met the demanding needs of the Data Processing industry and we have been leading the way ever since. The expanding technology of the Computer System Industry is creating more sophisticated applications, which require safe, reliable connections that exceed the tough demands of todays applications. Russellstoll® commitment to excellence offers you that and more... Safety, Durability, Reliability and Performance on our complete line of plugs, receptacles and connectors. Pin and sleeve power connections are chosen for Computer System interconnections because of the absolute performance required in todays mainframe and peripheral installation. Pin and sleeve connections have been proven to be more reliable in service than any bladed device. Data centers stay in service because Russellstoll® keeps them connected.