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Original topic:

reported size of a Samsung EvoPlus 128Gb U3 micro SD card

(Topic created on: 25-06-2021 04:13 PM)
Sean-Mck
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What should be the reported size of a Samsung EvoPlus 128Gb U3 micro SD card when using a Windows operating system?

Thanks

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LiquidSnake
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128GB right? Maybe a bit less than 128GB, due to system processes. If not, you most likely bought a fake lol.

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LiquidSnake
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128GB right? Maybe a bit less than 128GB, due to system processes. If not, you most likely bought a fake lol.

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Steven9761
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1024 MB = 1Gb, so 128Gb = 131,072 MB. A lot of manufacturers "simplify" this equation, so that a card capable of 128,000MB is sold as a 128Gb card, when in actual fact, it has over 3,000Mb "missing". If this is the scenario that you are seeing, what you have is a card/USB stick that is only about 120(ish)Gb. Anything wildly below this reading is not a genuine 128Gb device. It is recommended to stick with well-known brands, as their stated sizes will be closer to accurate than some less-known brands. That does not necessarily mean that lesser-known = less reliable.
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Sean-Mck
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I am seen 119Gb reported by windows 7, H2testw is running on it at the moment.

Good or Bad?

I will check some other cards as well.

Ah a128Gb Sandisk and a different Samsung Evo 128Gb also report as 119Gb

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LiquidSnake
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No that is definitely good! Definitely a real one lol. It is going to take a long time with h2testw so I wouldn't worry about it being a fake :smiling-face:
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Sean-Mck
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"it is going to take a long time with h2testw" ooooohhhhhhh yes indeed, 2 hours per phase or there abouts lol, my computer isn't the fastest lol.

I always run H2testw on all my cards, I nearly got caught out a couple of years with my first "big" cards and learnt my lesson then, better safe than sorry.

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LiquidSnake
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Yeah true, true. Best bet is to run h2testw on the card and that's about it really! 😁
Maybe crystaldiskmark as well, to see if read and write speeds are as advertised?

Could you click the dots on my comment and select accept solution please? Thanks! 😁
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