Amazon.com: MSI Gaming GeForce GTX 1080 Ti 11GB GDRR5X DirectX 12 352-bit VR Ready Graphics Card (GTX 1080 TI Duke 11G OC) (Renewed) : Electronics
GeForce 10 series - Wikipedia
EVGA GeForce GTX 1080 Ti FE 11GB GDDR5X PCI Express 3.0 SLI Support FOUNDERS EDITION Video Card 11G-P4-6390-KR GPUs / Video Graphics Cards - Newegg.com