[Yellowbeard]

Here is a pic of the connectors on the PCIe connector for the HX series PSUs. I used an EVGA 9800 GX2 briefly this weekend for some testing and benching. This cable worked perfectly. The tab is off center but it would lock in and secure the plug. You just need to wiggle it a bit when installing.

Also, Nvidia has noted that the recently finalized PCI-SIG specification for the 300w PCIe connectors DOES include the 6+2 pin connectors. So, to accomodate these, Nvidia has reportedly already started widening the slot where the locking tab goes on these cards.