Poor writing values

Poor writing values

64GB SD XC QUMOX 64GB SDXC Class 10 UHS-I memory card Secure Digital High Speed ​​Write Speed ​​40MB / s read speed upto 80 MB / s (Electronics)
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Customer Review

After I read only positive reviews, and I slammed.

I can not explain, but presumably the actual cards are not as good as the one who got the most recent Rezessenten.

With me in the Macbook Pro Retina card reader I feel various test programs on Reading 80MB / s which is top and the description corresponds.
Writing I come to only 25MB / s and not as stated 50MB / s

Tests were of course sequentially with 1GB large read and write operations.

I sent the card back therefore.

It may be that the values ​​at the price are OK. For me, however, not sufficient.

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