GeForce GTX 1080 and 1070 3-Way and 4-Way SLI will not be enabled for games - PC Perspective
Building the Ultimate mATX SLI PC with Intel's 5960X and Nvidia's GTX 980 - GameSpot
New Gigabyte Nvidia Card Sli Bridge Pci-e Graphics Connector 2 Way Soft 3way 4way Hard Bridge Card For Video Graphics Card - Pc Hardware Cables & Adapters - AliExpress