Double difference pair cables

The invention provides a double differential pair cable which includes a joint and signal cable, wherein several signal lines are disposed in the signal cable, and several signal jacks is arrange centrosymmetrically on the joint, and the jacks includes two pairs of differential pair signal jeck, and the signal line is corresponding to the signal jacks. Comparing with current technology, the double differential pair cable disposes the signal jacks centrosymmetrically on the joint thereby effectively reducing the connection length of the signal line and making the connection length of each pair of signal lines to keep consistent, thus the transmission quality of the differential pair signal can be guaranteed.