An electrical connector includes a header connector and a socket connector configured to mate with the header connector. The header connector includes a plurality of signal pins and may include a plurality of shield blades. The socket connector includes a plurality of conductive paths, each conductive path being coupled to a signal contact, and may include a plurality of first shields. The plurality of signal pins and the plurality of conductive paths and signal contacts are configured to form a plurality of transmission lines. The plurality of shield blades or the plurality of first shields are configured to be electrically grounded and provide interrupted shielding of the plurality of transmission lines when the header connector and the socket connector are in a mated configuration.