So I wanted USB3 for my early 2008 Mac Pro I bought a Sonnet Allegro USB 3.0 PCIe card I started seeing speratic issues with my Magic Trackpad and logitech k811 Spend a few days trying to nail it down. Then decided to pull the card. And low and behold issues were gone. My bluetooth devices sit about 4feet from the MacPro. I decided to to email Sonnet. this is what they had to say.. " It has been brought to our attention that some customers using BT devices have experienced problems with said devices when the USB3 card is installed. Upon investigation it was found that the card emits some level of radio energy that interferes with BT signals. As this is a product of the design of the card the issue can't be resolved with a driver update. For more information, Intel has published a white paper, further explaining the issue. http://www.usb.org/developers/whitepapers/327216.pdf " Has anyone else ran into this problem? Have you had better results with a different USB3 PCIe manufacturer? Is there away of possibly putting shielding over the card like a non conductive static bag or something?