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Refurbished: SAPPHIRE Radeon HD 6990 DirectX 11 100310SR 4GB 256-Bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity - Newegg.com
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UnBoxing Sapphire Ati 6990 4GB Dual GPU CrossFire + Looks on ROG Rampage III Black Edition - YouTube
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Sapphire Technology AMD Radeon HD 6990 (21193-00-40G) 4GB GDDR5 SDRAM PCI Express x16 Graphics adapter for sale online | eBay
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