Amazon.com: XFX Radeon HD 5550 1 GB DDR3 PCI-E 2.1 Video Card HD555XZHF2 : Electronics
AMD Radeon HD 5550 Review: If you love your gaming but are not too serious about it, the ATI Radeon HD 5550 is a viable option - PC Components - Graphic Cards - PC World Australia
ATi Radeon HD 5550 R83K 512MB HDMI/VDI/VGA PCIe Graphics Card TESTED FREE SHIP | eBay
ATI Radeon HD 5550 512MB GDDR5 Video Card | TweakTown