Looks legit...
The person who have those cards say that he can do it as he have bios settings do this but we need to agree about the price for each card.
Any one can confirm this hashrate as it's huge.
Sure, this person seems like a totally honest seller.
By the way, I'm the holder of a bank account of a Nigerian prince who was just involved in a car accident. The funds amounts to 100+ mil $$$. I desperately need someone to help me manage this account while the situation is solved. Get in touch with me on 555-888-4321 and I will tell you more!
This matter is very urgent and you would be greatly awarded by your assistance.
Appreciate your time, sir.