After trying to put about 100GB of music on it, I found that everything after about 30GB was sent to the card was damaged. So I decided to check it out. And it turns out that after several read / write operations. My guess was correct. The card was either badly sent to me or they are lying and all these cards are hacked cards. Attention: Only 127992 out of 127993 MB were checked. sectors) 95.7 GB DATA LOSS (200746697 sectors) Details: 0 KB overwritten (0 sectors) 0 KB slightly modified (< 8 bits/sector, 0 sectors) 95.7 GB corrupted (200746697 sectors) 0 KB memory aliasing (0 sectors) First error Offset: 0x0000000751326exexpreted: 0x0000000751326e00found: 0x27A571F2EE127D7FH2TESTW Version 1.3WRITION: 9.25 Mbytes/speed SDHED: 4.32 Mbytes/SH2TESTW V1.4AS, you see, around 128 GB, got the same result three times. I would expect a full refund if this card is Samsung or Sandisk, but not being very hopeful I would advise anyone to just spend the extra $15 on a Samsung or Sandisk equivalent.
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