One posting later it says:
It´s hard to believe, but MikroTik really writes their own wireless driver. MikroTik regularly confirms this in it´s forum, e.g.:
http://forum.mikrotik.com/t/802-11ac-wave2-support/127501/1
“You are right, that MikroTik made wireless driver doesn’t have Wave2 support, so new chipset benefits are not there. We are working on a new driver.”They use their own wireless driver package, which is independent from the linux kernel:
http://forum.mikrotik.com/t/ros-7-wireless/134524/1
“Since at the moment v6 and v7 uses identical driver and software for wireless, your observation is most likely a coincidence. The performance should be the same, signals also.”http://forum.mikrotik.com/t/802-11ac-wave2-support/127501/25 > 2
“Most of the features are implemented, but MU-MIMO is WIP”