A range of 2.54mm pitch jumper sockets, consisting of a molded outer body holding phosphor bronze spring contacts. The contacts are either tin plated overall, or selectively gold plated on the contact area. The component is intended to interconnect two adjacent 0.64mm square or round section pins on 2.54mm pitch centers. Connectors can be mounted side by side in either direction on 2.54mm pitch centers. Double and single contact versions are available, with either open or closed tops on the single row versions.