The US vs International version only matters if you are planning to continue using the native RouterOS operating system on the devices. If you are planning to flash them to AREDN firmware, they you can use either the US or International version and it will give you exactly the same result.
The US vs International version only matters if you are planning to continue using the native RouterOS operating system on the devices. If you are planning to flash them to AREDN firmware, they you can use either the US or International version and it will give you exactly the same result.