A connector includes conductive pins inserted into apertures in a housing. The pins may include a single groove or a pair of opposing grooves in which ribs of the housing are disposed. The ribs may conform to the shape of the grooves to retain the pins in the housing apertures. The apertures may includes an extended side opening that opens onto an upper surface of the housing to enable a contact beam and shielding bar to be inserted from the top. Solder balls may be disposed on an underside of the connector.