ELECTRICAL CONNECTOR HAVING A GROUND BUS WIRE

A contact assembly for an electrical connector includes a contact positioner having contact support walls holding a contact array. The contact array includes signal contacts and ground contacts interspersed with the signal contacts. The signal contacts include mating ends configured to be mated with a mating electrical connector and mounting ends configured to be terminated to a host circuit board. The signal contacts include transition portions between the mating ends and the mounting ends. The ground contacts include mating ends, mounting ends, and transition portions between the mating ends and the mounting ends. The contract assembly includes a ground bus wire extending transversely across the contact array. The ground bus wire is electrically connected to each of the ground contacts. The ground bus wire is electrically isolated from each of the signal contacts.