12G-P4-3990-KR EVGA GeForce GTX TITAN Z 12GB GDDR5 768-bit DVI-I/ DVI-D/ HDMI/ DisplayPort SLI Support PCI Express 3.0 Video Graphics Card
ASUS GTXTITANZ-12GD5 G-SYNC Support GeForce GTX TITAN Z 12GB 768-Bit GDDR5 PCI Express 3.0 HDCP Ready SLI Support Video Card GPUs / Video Graphics Cards - Newegg.com
NVIDIA Releases GeForce GTX Titan Z
Nvidia Announces 5K-Ready GeForce GTX Titan Z - IGN
Amazon.com: EVGA GeForce GTX TITAN Z 12GB GDDR5 768 Bit GPU Graphics Card (12G-P4-3990-KR) : Electronics