Is there a reason "united states3" country setting does not support U-NII-2A and U-NII-2C bands? These bands are disabled in all US sold devices.

These frequencies are legal for use, see the linked document.

https://transition.fcc.gov/oet/ea/prese ... atesDT.pdf

Is it a violation of FCC to use an international model Mikrotik device, set to "united states2", and used in the United States?

I was looking at the RB4011, but based on the lack of responses I didn't see much hope in sticking with Mikrotik for my wireless. I guess the US is not an important market for them.

I just finished setting up my Ruckus R720. Previously I was seeing about 220 Mbps with my hAP ac at 80 MHz. With the new R720 at 160 MHz I now see over 900 Mbps, probably limited by my gigabit connection.

Still though, I am eyeing the CRS312-4C-8XG for a 10G switch. Hopefully it supports 2.5GBase-T for the R720.