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Comparison Kingston microSD UHS-I U1 Class 10 16 GB vs Transcend Premium 400x microSD UHS-I 16 GB

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Kingston microSD UHS-I U1 Class 10 16 GB
Transcend Premium 400x microSD UHS-I 16 GB
Kingston microSD UHS-I U1 Class 10 16 GBTranscend Premium 400x microSD UHS-I 16 GB
from $7.84 up to $12.64
Outdated Product
from $19.58 
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TypemicroSDHCmicroSDHC
Storage16 GB16 GB
Specs
Speed class1010
UHS classUHS-I Class 1 (U1)UHS-I Class 1 (U1)
Video recording classV10V10
Speed value400 x
Read speed45 MB/s60 MB/s
Write speed10 MB/s10 MB/s
Adapter included
 /depending on configuration/
 /depending on configuration/
Added to E-Catalogdecember 2015december 2015

Speed value

The coefficient describing the maximum speed of the card in read mode. In this case, 150 KB/s is taken as a unit; thus, for example, the speed value of 533x corresponds to 150*533=79,950 KB/s, i.e. about 80 MB/s.

In general, this parameter is quite specific; in practice, it is easier to focus on the directly declared reading speed (see below). However, sometimes it is not specified - in such cases, the speed value will be most useful.

Read speed

The maximum speed of reading data from a memory card.

Any modern memory card provides sufficient reading speed for simple everyday tasks — like copying photos from a camera to a laptop. Therefore, it makes sense to pay attention to this parameter mainly in cases where the card is purchased for professional use, or if high speed is critical for you — for example, if you often have to copy photos from the camera in a hurry. In doing so, two points should be taken into account. Firstly, the corresponding speed must be supported by the card reader where the card is used. Secondly, this paragraph indicates the theoretical maximum — in perfect conditions; the actual reading speed may be lower (if we are talking about cards with UHS, this speed can be estimated by the UHS class, see above about it). Nevertheless, it is quite possible to compare different models of cards by this indicator: differences in theoretical speed usually quite correspond to the difference in actual speed.
Kingston microSD UHS-I U1 Class 10 often compared
Transcend Premium 400x microSD UHS-I often compared