EVGA SuperClocked 02G-P4-3662-KR G-SYNC Support GeForce GTX 660 Ti 2GB 192-bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card GPUs / Video Graphics Cards - Newegg.com
Amazon.com: WWWFZS Graphics Card Fit for ASUS Video Card GTX 660 2GB 192Bit GDDR5 Graphics Cards Fit for NVIDIA Geforce GTX660 VGA Cards Stronger Than GTX 750 Ti : Electronics
GTX660-DC2O-2GD5-DDO ASUS Nvidia GeForce GTX 660 2GB GDDR5 192-Bit DVI