Summary: Here are the final results with H2testw test, no need to write long story about this microSD card. Test finished without errors. You can now delete the test files *.h2w or verify them again. Writing speed: 12.1 MByte/s Reading speed: 19.3 MByte/s H2testw v1.4 I got it for $20.99 + tax from their Langley store.
Summary: I don't think this is normal, but I put this card in my Galaxy S3. I went to transfer files and there was a write error. I ended up loosing about 3GB of files I tried to transfer. I ran H2testw v1.4 and it could not write to the card past a point. I formatted it twice and ran it through H2testw v1.4 and its working now. Should I RMA it?
Pros: Low cost for its size.
Cons: Failed When writing to card. Lost 3GB of unrecoverable files.
Summary: This 32 GB micro SD is the cheapest on the market that i can find. It does about 8 MB per second right and 15 MB a second read on my tests. I would recommend this drive to any one on a budget.
Summary: I think i had gone through 4 of these card already. Stay away. Even if you don't use your external SD card that often with your phone. It will still fail. For month i didn't listen any music that is stored in this card in my phone or download anything new to this card on my phone. Then come the day i want to use it. Failed right away. Thank god i bought them when they were cheap. Will never get another product from ADATA.
Pros: The only pro for this product is that is cheap
Cons: The cons for this is that it fail a lot....yes a lot.
Summary: Bought one of these for my Samsung phone. It failed after about 4 weeks. Nothing I did would recover it so I did an RMA with Adata. Their service was great albeit very slow. I got the new card about a month and a half later. After another 3 weeks of use, this one too failed on me. Same issue, "Windows is unable to format" and it thinks there is a lock on the card. These cards are simply poor quality.