I'm giving away my farm.
Prices: 1 6990 = 20 BTC
2 6990 = 35 BTC
3 6990 = 50 BTC
I can sell a total of 15 cards.
The cards are all perfectly working, used a few days.
If you want i have all the other components like case, power supply, ecc. Write here or pm for more info.