AMD CrossFireX™ Certified Graphics Cards Details 

Title:Diamond Radeon HD 3850 (3850PE35120)
Manufacturer:Diamond Multimedia
Product Supported:ATI Radeon™ HD 3850 Series
Memory:512MB
Bus:PCI-E

Connectors:DVI-I
DVI-I & TV Out

Where to Buy:http://www.google.com/products?q=Diamond+Radeon+HD+3850+512MB+PCI-e&show=dd