 What is the maximum distance of CAT 6A cabling? As previously mentioned all structured cabling designs and standards are based on the following. 1. 90 meter permanent link from the patch panel to the outlet. 2. An allowance of 10 meters for patch leads in total. 3. An allowance of 100 meters if the link is direct with no patch leads. Therefore, the maximum distance for the CAT 6A cable is 90 meters if using patch leads. Calculations can be used for longer distances and shorter patch leads, but this is the starting basis for the design.