There is provided a communication connector including a housing and a plurality of electrical contacts received by the housing. A printed circuit board (PCB) is provided and includes at least first and second pairs of electrical conductive traces. The first pair of traces is connected to a first pair of contacts. The second pair of traces is connected to a second pair of contacts. The PCB has first and second regions. The first pair of contacts is located in the first region and the second pair of contacts is located in the second region. The PCB further includes at least a first ground plane. The first ground plane has first and second sections. The first and second sections are electrically isolated from one another. At least a portion of the first section being adjacent to at least a portion of the first pair of traces. At least a portion of the second section is adjacent to at least a portion of the second pair of traces whereby signal transmission is enhanced. A layer of dielectric material which has a relatively low dielectric constant is located between the first and second traces and the first ground plane.