Zotac NVIDIA GeForce GTX Titan X 12 GB DDR5 PCIe 3.0 GPU GRADE A CONDITION | eBay
Refurbished: GeForce GTX TITAN X 12GB 384-Bit GDDR5 PCI Express 3.0 HDCP Ready SLI Support Video Card - Newegg.com
Used - Like New: EVGA GeForce GTX TITAN X 12G-P4-1999-KR 12GB HYBRID GAMING, "All in One" No Hassle Water Cooling, Just Plug and Play Graphics Card - Newegg.com