Pretty disappointed with this card so far. Running on Win7-64bit, install was a breeze using windows7 drivers. But, sporadically, connections disconnect, timeout, or latency goes through the roof. Tried Dlink and Atheros drivers. No matter what, when card is enabled, my DIR-655 router reports wireless lan RX errors ticking up.
If I configure for wide-channel 40mhz for 300mbs, errors spike considerably more. Disable the card and use DWA-130 USB and no errors - same PC positioned in the same place. Had the card too long to return it. Will try running on the DWA-130 USB for a while to see if the sporadic problems continue or not.