I presume you know that the info can be faked. Its been done by scammers for years, most notably for higher demand/cost items like SD cards. I don’t expect you to go and write 900gigs to it to test the size. But please report back when you get over 50% full and let us know if its legit.
The reason I question the pricing is this
There is 1 that is close in price and dimensions to the one you linked, the other one is way way higher.