i see the seller, seems to have a lot of good feedback. i cant see how a big seller like that would put out fake stuff. it could be a generic brand like those socket 2011 motherboards you get from china for dirt cheapo but work. obviously needs better pics.
need the op to provide proper pics of whats been received and also take pic of the gpu itself with heatsink removed. interested to see how this scam can even work for such big sellers since ebay always sides with the buyer and will refund no probs.
Fake graphics cards are common enough on eBay, Wish etc, plenty of YouTube videos showing various examples.