4" Dual 6-Pin PCI Express (F) to 8-Pin PCI Express (M) Power Adapter 4-inch Dual 6-Pin PCI Express (F) to 8-Pin PCI Express (M) Power Adapter General Features: 4-inch cable length Dual PCI Express x16 ATX 1.0 150W to single PCI Express 225/300W High Power 1.0 Converts two 6-pin PCI Express power connectors to one 8-pin (2x4) PCI Express power connector Perfect for SLI and CrossFire systems Regulatory Approvals: UL