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Title: Seems as fast as necessary
Review: I picked up this card with my Earthmate PN-40 GPS unit. The 16 GB is enough to put all the topographic data (from Delorme) for 2 or 3 states on it. There have been no problems reading and saving to the memory card, and it seems to be as fast as one could want. The only caveat is that this card will not work in some older devices like my TREO 750wx.
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