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Title: 2 bad cards out of 4 !
Review: I can't believe that 2 brand new cards died out of total 4 cards!Unbelievable quality control. I am wondering if they are blind build after wafer sort. I don't think those SD cards had final test after packaging! I won't buy Sandisk anymore. It seems that Sandisk is lowering down the cost to it competitors. The quality advantage of Sandisk is gone now. Those memory cards are like engineering build for debugging defects ^_^.
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