Amazon.com: ASUS GeForce GTX 550 Ti (Fermi) 1GB 192-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card, ENGTX550 TI DC TOP/DI/1GD5 : Electronics
GTX 550 Ti | Entry Level Gaming GPU from 2011! - YouTube
ZT-50401-10L Zotac GeForce GTX 550 Ti 1GB GDDR5 PCI Express x16 2.0 Video Card