Which one of these SanDisk Ultra SD cards has faster WRITE speed?

Memory Cards Mobile memory, professional cards and all other st
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Hi all,

I’d like to know how to determine write speed of SanDisk SD cards. For example, I am trying to find out which of these two SD cards has faster write speed:

#1: SANDISK, Micro SDHC Ultra Android, 16GB, SDSQUAR-016G-GN6MA, class 10 UHS-I

#2: SANDISK, Micro SDHC Ultra, 16GB, SDSQUNC-016G-GN6MA, class 10 UHS-I

I can see #02 has write speed of 30 MB/s but write speed is not specified for the card #01.

SanDisk’s SD card specifications mention C10 , U1 and A1 but Speed Class Standard table mentions UHS-I , UHS-III , V6 , V10 , V30 , V60 and V90 and it does not menstio A1!?

Can someone please explain how can I know write speed in MB/s of the card SDSQUAR-016G-GN6MA or any other SanDisk SD card?

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I also have the same question .but dont woory I am getting to get the answer about it

Thanku for the post

Also do see this