A:Answer OldGamerGuy,
Thank you for your interest in this CLX SET!
As currently shipping, the motherboard is CrossFireX compatible only, and does support M.2.
As to the description, the system does have a 2080 Ti, and Best Buy has corrected the typo at our request.
If you have any other questions, or would like assistance in finding the right CLX SET system, here at Best Buy, for your needs, please contact our Friendly Customer Service Team, toll-free, at 855.490.2569.
Thank you again!