StarTech.com 6in LP4 to 6 Pin PCI Express Video Card Power Cable Adapter - Power adapter - 4 pin internal power (M) to 6 pin PCIe power (M) - 6 in - LP4PCIEXADAP - Power adapter - 4 pin internal power (M) to 6 pin PCIe power (M) - 6 in - for P/N: ATX2POWER430, ATX2POWER530, RMC4450, ATX2POW500HS, ATX2POW450HS, ATX2POW400HS