4x ASUS Radeon R9 280X DirectCU II TOP - Swiss Seller.
Almost new cards (purchased them in January 2014).
Cards come with original boxes and all accessories.
Here is my ebay link.
http://www.ebay.co.uk/itm/ASUS-Radeon-R9-280X-DirectCU-II-TOP-/321361135268?pt=DE_Elektronik_Computer_Computer_Graphikkarten&hash=item4ad29dc6a4Price per single card 0.44BTC, if you want to buy all of them 0.41BTC per cards.
I also have an R9 290 with installed arctic accelero hybrid. Super silent and max temp 64 degree celcius.
Price 0.5 BTC
Contact me for any inquiry