Your store. PNY RGMX108TN3IBGT1KTP GeForce GTX 1080 Ti DirectX 12 11GB 352-Bit GDDR5X PCI Express 3.0 x16 SLI Support Video Card
Source NVIDIA GIGABYTE AORUS GeForce GTX 1080 Ti Waterforce Xtreme Edition 11G Used Graphics Card with GDDR5X Memory Support 2-way SLI on m.alibaba.com
GeForce GTX 1080 Goes On Sale Tomorrow. Learn More In This Deep Dive
Preview: NVIDIA GeForce GTX 1080 SLI benchmarked
Amazon.com: MSI GeForce GTX 1080 Ti DirectX 12 GTX 1080 Ti GAMING 11G 11GB 352-Bit GDDR5X PCI Express 3.0 x16 HDCP Ready SLI Support Video Card Model GTX1080TIGAMING11G : Electronics
Tested: The payoff in buying Nvidia's $40 SLI HB Bridge | PCWorld