1. AC Question's Avatar
    I have a Samsung Galaxy S4 (SGH-M919), and I recently purchased a Samsung Evo 32GB Class 10 UHS-1 Micro SD card. When I run the A1 SD Bench app, it shows Read speeds of 16MB/s and Write speeds of 11MB/s. It seems to be a bit slow seeing as the advertised read speeds were up to 48MB/s!
    Should I return this card for another one?

    Thanks
    07-12-2014 11:17 PM
  2. B. Diddy's Avatar
    Run SD Insight to make sure the card is what it says it is.
    09-04-2014 01:17 AM
  3. dctokyo's Avatar
    I have a Samsung Galaxy S4 (SGH-M919), and I recently purchased a Samsung Evo 32GB Class 10 UHS-1 Micro SD card. When I run the A1 SD Bench app, it shows Read speeds of 16MB/s and Write speeds of 11MB/s. It seems to be a bit slow seeing as the advertised read speeds were up to 48MB/s!
    Should I return this card for another one?

    Thanks

    Your write and read speed will depend on the equipment that is used. This card is rated as class 10 UHS-1 so as long as your equipment is designed for UHS-1 you will get the maximum read and write speed. The class 10 rating promises at least 10 MB/s write speed, but I measured it at closer to 18 MB/s. The advertised read speed is 48 MB/s. In order to see this kind or read and write speed on a computer, you will need a high speed card reader, or a USB 3 external card reader. If you're using this in a phone, you won't get the maximum speed unless your phone is designated UHS-1 compliant and the Samsung Galaxy S4 is not.
    For now no smartphone supports UHS-1, even S5 or HTC ONE(M8)
    09-04-2014 01:31 AM
  4. Paul627g's Avatar
    Please do a little research before buy things that you have no idea of, and don`t believed in the company's marking crap.
    Please be more polite to our members in the community.

    Thank you.

    Sent from my HTCONE using Tapatalk
    B. Diddy likes this.
    09-04-2014 02:24 AM

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