please i need to know how i can buy extra channels for RB333
thanks

support@mikrotik.com or contact your dealer.

thank you Mr jwcn

what is the extra channels?? whats more added ?? than normal licence

Extra Channels (also known as Custom Frequency License) unlocks all frequencies supported by your wireless cards, even those outside your local regulatory domain. You can get this license key upgrade if you have some special permission to use other frequencies, or simply don't care and want to take full responsibility of using something illegal in your area. The upgrade costs 10$ per router.

interresting.. thanks