Amazon.com: OIAGLH 5PCS PCI-E 6-pin to Dual 6+2-pin (6-pin/8-pin) Power Splitter Cable Graphics Card PCIE PCI Express 6Pin to Dual 8Pin Power Cable : Electronics
Athena Power CABLE-EPCIE1628 PCI-E 6-Pin to Dual 8(6 2) Pin
StarTech.com Power Adapter Cable PCI Express 6 Pin 8 Pin PCIe Connect a standard 6 pin PCI Express power connection on the Power Supply to 8 pin ATI and NVidia video cards - Office Depot