It really depends on how far away you are from the router; longer distances make the card AND the router boost antenna gain slightly to compensate (especially in transmission, and it's based on the reception strength measured in theory) but I cannot imagine or recall for that matter based on testing that it did a great deal to power consumption; our meters are sensitive to .5W jumps only and it made it jiggle between 3/4 and 5/6 watts. So maybe 250-300mW for wireless and a little extra CPU for encryption?
You would draw more power plugging in a USB flash drive.
_________________ Steev Klimaszewski, Genesi USA Inc.
Senior Software Engineer
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