Electrical connector having three rows of contacts and a coupling element interconnecting selected ground contacts thereof

An electrical connector comprising:

• a substrate having a plurality of holes;
• a plurality of contacts mounted in corresponding holes of the substrate, the plurality of contacts including a first row of contacts arranged as a pair of signal contacts flanked by two ground contacts, a second row of contacts having four ground contacts on one side of the first row of contacts, and a third row of contacts having four ground contacts on another side of the first row of contacts, each of the plurality of contacts including a body and an upper arm;
• and
• a coupling element interconnecting the two ground contacts of the first row to selected ground contacts of the second and third rows;
• wherein
• the upper arm of each of the plurality of contacts has a contacting convex facing upward;
• and
• the four ground contacts of the second row are connected side by side and the four ground contacts of the third row are connected side by side.