Printed circuit board with a differential line pair having vias in each line that are not equally spaced apart

A printed circuit board comprising:

• a differential pair of transmission lines comprising:
• a first signal transmission line comprising a first via and a second via;
• and
• a second signal transmission line comprising a third via and a fourth via;
• a first distance between a center of the first via and a center of the third via is equal to a first value;
• a second distance between a center of the second via and a center of the fourth via is equal to the first value;
• a third distance between the center of the first via and the center of the second via is equal to a second value;
• and
• a fourth distance between the center of the third via and the center of the fourth via is not equal to the second value;
• wherein a first line located at the first via is substantially perpendicular to the first signal transmission line, a second line located at the third via is substantially perpendicular to the first signal transmission line, the first distance is defined between the first line and the second line, and the first value is greater than zero;
• and
• wherein the first value is equal to (T*V)/2, T is a rise time of a signal of the differential pair, and V is a transmission speed value of the signal of the differential pair.