These state of the art power supplies have been Certified by nVIDIA Corporation as "QUAD SLI Ready." They have been rigorously tested by nVIDIA to verify their compliance with the highest performance QUAD SLI parts on the market.

QUAD SLI rigs come in two formats, twin dual processor cards that require one PCI Express connector per card (2 Total) and twin dual processor cards that require two PCI Express connectors per card (4 Total). While most QUAD SLI setups fall into the first category and only require two PCI Express connectors, please check the individual power supply descriptions carefully if you need four connectors to ensure the model you select also has four connectors!