EVGA VGA Pcie Cable (8 to 8 to 6) GPU/Graphic Card PSU/Power Supply leads Type 1 | eBay
How to connect High Powered Graphics Card to PSU - connecting 8pin and 6pin to PSU - YouTube
COMeap ATX CPU 8 Pin Male to Dual PCIe 2X 8 Pin (6+2) Male Power Adapter Cable for Corsair Modular Power Supply 25-inch+9-inch (63cm+23cm) : Amazon.co.uk: Computers & Accessories
ModPC - 8 Pin PCIE / GPU Cable
6 Pin To Dual 8 Pin (6+2) Graphic Card Power Supply Cable Splitter Power Cable Connector Extender For Computer Case | Fruugo UK
6' LP4 to 8 Pin PCIe Power Cable Adapter - Computer Power Cables - Internal | StarTech.com Europe