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sdcard speed problem

Discussion in 'Samsung Galaxy S4' started by theimmortalbg, Jul 6, 2014.

  1. theimmortalbg
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    theimmortalbg New Member

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    For my galaxy s4 I bought microSDHC card adata premier - Premier microSDHC/SDXC UHS-I Class10_Memory Cards_ADATA Technology this one.
    Here is the speed charts - Charts, benchmarks SD Cards 2014, [2] Sequential Write [MB/s] - its almost 20mb/s.
    My card is much much slower than this. I bought it from very trusted shop in my town so its impossible to be fake. The write speed when I write mp3 files (4mb avg) is 4mb/s when I copy through cable (from pc to the phone's sdcard). When I write directly to the sd card with card reader its 8mb/s. So what happens? Is anybody have the same problem? Is it normal when I use cable the speed to be slower than with card reader. Why the speed is at least 2 times slower than in tests? (the card is formated in fat32).
  2. dezymond
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    dezymond Tech Support Mod Staff Member Premium Member

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    Jeffrey likes this.
  3. dezymond
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    dezymond Tech Support Mod Staff Member Premium Member

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  4. leeshor
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    leeshor Super Moderator Staff Member

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    Your link was to a 64GB card which the S4 has known problems with. If it is indeed a 64GB card I would swap it for 2 32GB cards post haste.