2*4Pin Molex IDE to 6Pin PCI-E Graphic Card Power Supply Cable Adapter PC Video Card Connector Cable Converter Cord - AliExpress
Amazon.com: 4 Pin Male Molex to 6 Pin Female PCI-Express PCIE Video Card Power Converter Adapter Cables Connector for Video Cards (2Pack/18cm) : Electronics
Premium Sleeved 4 Pin Molex to 6 Pin PCI Express Adapter Cable 20cm - MODDIY