A differential trace pair system includes a board having a first, a second, a third, and a fourth board structure member. A differential trace pair in the board includes a first differential trace extending between the first and the third board structure members, and a second differential trace extending between the second and the fourth board structure members. The differential trace pair includes a serpentine region that includes a first portion and a second portion where the first and the second differential traces have a first width, are substantially parallel, and spaced apart by a first differential trace pair spacing, and a third portion in which the second differential trace includes a second width that is greater than the first width, the first and second differential traces are substantially parallel and spaced apart by a second differential trace pair spacing that is greater than the first differential trace pair spacing.