Amazon.com: AMD Radeon R9 280X 3GB HDMI PCI Express Video Graphics Card for Apple Mac Pro, outperforms ATI Sapphire Radeon HD 2600, 4870, 5770, 7950, 9000, 9800 Gigabyte : Electronics
Used R9 280x 3gb Xfx Graphics Cards Amd Radeon R9 280a 3gb Video Screen Cards Gpu Desktop Computer Map Videocard Pci-e X16 Hdmi - Pc Video Control Module - AliExpress
HIS Radeon R9 280X iPower IceQ X2 Turbo Boost 3GB GDDR5 PCIe Reviews, Pros and Cons | TechSpot
ASUS Announces Strix R9 280 and Strix GTX 780 | VideoCardz.com