How can you tell if a Samsung SD Card is fake?

[YarManYak]

Hi guys. I recently bought this MicroSD card;

http://www.amazon.co.uk/gp/product/B00OHJWYFO?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00

I saw the 4.5 star average review and ordered it but upon further inspection of the reviews many people are complaining they have received fake ones. One thing that kept popping up was that to the right of the EVO text there should be a filled arrow and the fake ones are missing this. My card, bought new direct from Amazon, is missing this arrow. Apparently the packaging is also a give away but mine was sent in frustration free packaging in a small plastic case and not in the standard packaging. My card says it was produced in Korea which should be a good sign and the H2testw came up with no errors so it seems the only unusual thing about the card is the missing arrow.

Is there any other reliable way of telling if a card is fake? I would like to know if the card is fake before I put lots of data on it only for it to become corrupted potentially after the return deadline from Amazon runs out.

 

[Rooster__]

one way is to fill the sd card up with data and check if it all is correctly read- the fakers flash the firmware to make it register with a higher capacity. h2testw is a program that does this, it should tell you the quantity of data. If it is not the same (or near enough) to the specified amount it is fake- worst part is you can write to the card until the capacity listed is full, it just fails to write it.
http://www.softpedia.com/get/System/System-Miscellaneous/H2testw.shtml