Amazon.com: PUSOKEI GTX550Ti Graphics Card, 6GB 192BIT GDDR5 PCI E 2.0 Gaming Graphics Card, Support DirectX11, 3D Stereo Display, Dual Fan HD MI VGA DVI Graphics Card for Gaming PC : Electronics
NVIDIA Announces GeForce GTX 550 Ti | Windows Experience Blog
ZT-50401-10L Zotac GeForce GTX 550 Ti 1GB GDDR5 PCI Express x16 2.0 Video Card