Patent ID: 8444436

Claim:
A printed circuit board having a first side for coupling with a first connector and a second side, opposite the first side, for coupling with a second connector, the printed circuit board comprising: a first plurality of vias extending from the first side to the second side with the vias providing first signal launches on the first side and second signal launches on the second side, the first signal launches arranged in pairs and provided in a plurality of rows for electrically connecting to signal couplings of the first connector, and the second signal launches arranged in pairs and provided in a plurality of columns for electrically connecting to signal couplings of the second connector; and a second plurality of vias extending from the first side to the second side with the second plurality of vias providing first ground launches on the first side and second ground launches on the second side, wherein, for each pair of first signal launches in each row, one first signal launch is disposed along a first line, and the other first signal launch is disposed along a second line substantially parallel to the first line, wherein, for each pair of second signal launches in each column, one second signal launch is disposed along a third line, and the other second signal launch is disposed along a fourth line substantially parallel to the third line, wherein, for each pair of first signal launches in each row, there is a first ground launch disposed therebetween, and wherein, for each pair of second signal launches in each column, there is a second ground launch disposed therebetween.