[MT-AU Public] Upgrade LHG LTE kit

Hi list, Band 28 (700mhz) is the craze today with providers upgrading their towers. I don't have a LHG LTE kit, but I was wondering if the internal miniPCI-e slot LTE card is removable so I can use a card that supports band 28. I was thinking Sierra card. No sure if the LHG has the drivers to handle other cards. Thanks Kilburn