These cards are Gigabytes and they're flashed to the correct and most stable mining version from last year for most efficiency. They are not stock firmware.
One card out of 5 have fan issues, but can easily be fixed.
If necessary I will authenticate with a meeting on IRC to prove identity. I haven't been active on IRC for a bit, so I understand if you make this formal request.
I'm limiting this shipment to the USA only for insurance purposes. Sorry international folks!
Please check my feedback trust rating here on this forum.
You can also check my feedback trust rating on BTC-OTC located here:
http://bitcoin-otc.com/newsite/viewratingdetail.php?nick=crypt0queenAccepting offers now, BTC only. Thanks!