Unfortunately too slow

Unfortunately too slow

SanDisk Ultra 16GB microSDHC Class 10 Memory Card (incl. SD adapter and a free Memory Zone app) [Amazon Frustration-Free Packaging] (optional)

Customer Review

In a Class 10 card is about 10 Mbyte / s should be written.

Application:
I used the card for video recording. If the card is too slow or interrupt the write speed for a short time a strong, there is stuttering and problems in the video itself.

1. Delivery:
Writing with 8, then after a few seconds only with 5-6 Mbyte / s.
(Format NTFS + FAT tested)

After several attempts, the card was not recognized and returned.

2. Delivery:
Writing with 7-8, after a few seconds with only about 5 8 Mbyte / s.
(Format NTFS + FAT tested)

Tested both cards in the same drive with the same data.

Now the amazing thing:
have been exactly the same card for about 9 months in operation.
Write here: at least 15 MB / s, constant! In the same equipment and with the same test data.

Conclusion:
Apparently large differences between batches.

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