Thanks for prompt reply. The only one currently available from reputable site is this one: https://www.newegg.com/Product/Product.aspx?Item=N82E16814137135 This is probably not as fast or able to overclock like other gaming 580s. But that doesn't bother me as I don't play games and will probably never over clock the system. My only use is for Photoshop or video editing as I am getting the new Nikon 850 camera which has 4K video capability. As the previous mac cards (GT120 or HD7950) were reference style with blower style fan and I am presuming this will be ok in the cMP 2009 (flashed to 5,1). I don't mind waiting for Sapphire but sales person at Newegg mentioned that the companies have stopped making this card as the VEGA is the current model and I don't want to buy used cards in ebay as they must have been used in the mining computers.