Nikon Rumors let the world know that the Eye-Fi X2 cards now work perfectly fine with the highly sought after D800 and D800E. If you want to use your cards with the camera, all you need to do is download the latest firmware update and apply it; then you should be all gravvy.
I shot an email over the Ziv Gillat of Eye-Fi and asked him what the issue was. His statement:
“So by default, Direct mode broadcasts on channel 6. In the D800, due to noise that’s coming from the USB 3 interface, we needed to broadcast on channel 11.“
And there you have it. You should be all ready to shoot and upload with no problems. Just remember that the RAW files should take forever to transmit because they are so large. For the rest of us though, this brings up an interesting question of how futureproof the cards are if the industry is moving to USB 3.0.