Cat6A and Cat6 are both developed for Gigabit Ethernet. This cables can handle 10BASE-T, 100BASE-TX, 1000BASE-TX, and 10GBASE-T rate.seems to be Cat6A and Cat6 cables are having same features, . In word cat6A word “A” stands for augmented, which makes Cat6A behave differently in performance, size of cable
But only concern to be considered is Cat6A cable is thicker than comparied with Cat6 cable . For both cat6A &Cat6 cables can use same RJ45 . While cabling beacuse if cat6A cable is thicker than Cat6 cable for floding cable there will be no space in patch panel if you use cat6 patch panel for Cat6A cable.