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How to check the speed of an SD/microSD Card to find if it is authentic?

I got a couple of SD cards and a microSD card from BHPhoto and BuyDig.

I'm sure they are genuine but as there are too many fake cards being sold, I was wondering what you guys do to check your SD cards?

Would appreciate any info on this.

Thanks in advance.

If it makes a difference, I bought these cards;

Sony 32GB Class 10 SDHC UHS-1 R40 Memory Card (SF32UY/TQMN)
Sony 32GB Class 10 SDHC UHS-1 Memory Card (Up to 94MBs Read/45MBs Write Model # SF32UX/TQN)
Samsung 32GB Class 6 microSDHC Memory Card (MB-MSBGB/AM)

SOLUTION

sinfocomar

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sinfocomar

Then check benchmark charts... many on the internet like

http://www.tomshardware.com/charts/external-storage,39.html

ASKER CERTIFIED SOLUTION

Joe Winograd

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SOLUTION

kode99

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adrian23

ASKER

Thanks a ton everyone.

I ran tests using CDM and h2testw. Do the numbers look ok to you guys?

Sony 32GB Class 10 SDHC UHS-1 Memory Card (Up to 94MBs Read/45MBs Write Model # SF32UX/TQN):

Sony 32GB Class 10 SDHC UHS-1 R40 Memory Card (Up to 40MB/s transfer speed):

Warning: Only 29970 of 29971 MByte tested.
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 11.9 MByte/s
Reading speed: 60.2 MByte/s
H2testw v1.4

Warning: Only 29970 of 29971 MByte tested.
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 11.3 MByte/s
Reading speed: 59.5 MByte/s
H2testw v1.4

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Samsung 32GB Class 6 microSDHC Memory Card using a USB 2.0 adapter:

Warning: Only 29970 of 29971 MByte tested.
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 14.1 MByte/s
Reading speed: 18.2 MByte/s
H2testw v1.4

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@kode: Thanks for the heads up. The cards are brand new and yet to be used.

Joe Winograd

Those results look good to me. I feel confident that you have genuine cards. Btw, if you ever do get a fake card, I suggest you report it here:
http://sosfakeflash.wordpress.com/report-a-fake/

I've reported a few cards to them. Regards, Joe

adrian23

ASKER

Thanks a lot, Joe. Will do..

SOLUTION

kode99

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adrian23

ASKER

Thanks again, kode.. Many thanks to everyone for your time and input.

Joe Winograd

You're welcome. Great news that you have authentic cards!