AGX xavier DP Port

Hi Team,

We were going through the datasheet of AGX Xavier, The DP port version mentioned in the datasheet is 1.4 but the Max. data rate given is 5.4gbps/lane.
As per standard DP 1.4 the datarate is 8.1gbps/lane .Please let us know the maximum datarate/lane.

5.4gbps/lane is the supported maximum rate.