AMD CrossFireX™ Certified Graphics Cards Details 

Title:HIS Radeon HD 3870 512MB PCI-e
Manufacturer:Hightech (HIS)
Product Supported:ATI Radeon™ HD 3870 Series
Memory:512MB
Bus:PCI-E

Connectors:DVI-I
DVI-I & TV Out

Where to Buy:http://ati.pricegrabber.com/search_getprod.php/masterid=61567338/search=radeon%20hd%203870/st=product/sv=title