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I strongly suggest that you do research before purchasing this product either using Google or at the Samsung website. Also, if you have your unit user manual handy you could look at the compatible memories.
Sorry, there was a problem. Please try again later.eltong, i would think it would work since its also a samsung product, but i would pose that question on you tube or samsung direct to see what they say. hope this helps
Sorry, there was a problem. Please try again later.It probably works, but that phone only works with 16gb memory, as much, this special product has a very fast data transfer speed, but the manufacturer only recomends, 16 gb cards.
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Sorry, there was a problem. Please try again later.Hey, EltonG. The U640 has a recommended max storage of 16GB and anything beyond this is not advised. I hope this was helpful.
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