ZT139 Asus EAH4670/DI/512MD3/A 512MB ATI Radeon HD 4670 PCIe HDMI DVI VGA

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Asus ATI Radeon EHA3870/g/HTDI/512m/A - 512MB GDDR4 Video Card

ASUS ATI Radeon HD 4850 512MB EAH4850/HTDI/512M/A Graphics Card

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Asus ATI Radeon eah3870/g/htdi/512m/a 512MB GDDR4 Video Card

ASUS Radeon HD 3450 EAH3450/HTP/512M/A 512MB video card (DVI, VGA, TV out ports)