Is my sd card fast enough? G7 Power

Melmothxx

Melmothxx

Melmothxx

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Joined
22 Jun 2020
Posts
8
Hi,
I have a G7 Power and thought that my external sd card was fast enough, however when I try to format it as an internal storage I get the message that it's not fast enough. It's an
Integral 128 GB microSDXC Class 10 Memory Card for Smartphones and Tablets, Up to 80 MB/s, U1 Rating (INMSDX128G10-90SPTAB). Being U1 rating I assumed it was fast enough - is it?
Thanks
 
im not familiar with apple

can you download an SD card formatter on your mac ?

id try that first, then see what the file size says
 
Yes, I could do that, no doubt, but just had a look at the card itself and it says 3 inside a U. So I guess they sent me a slower card even though I asked for a U1 card. Too late now to tackle them about it. So, I'll just keep it for external storage - though not sure how that works - can I store stuff, music etc. on it that I can access on my phone?
 
format the card first, then see what it actually is first, if its a fake, i wouldn't use it !

there's also a program to test the speed, which is worth doing to, because if its fake you will see its a LOT slower than advertised
 
Downloader the formatter - it says it's an SDXC. I downloaded a speed test which said write speed benchmark - caching- was 7.797 mb/sec and with no caching 6.106.I could have done a full memory test but it takes almost a day!!! So, is it fake?
 
9 times out of 10 a fake card is a tiny SD card that has been formatted to look like a larger one. If it's definitely an SDXC then it's likely to be at least 16GB (real capacity). Try copying more than 16GBs of data to it and see what happens?
 
ShiWarrior said:
how does that work ?
Click to expand...

Essentially a fake product ID is used, and I assume some registers are changed to report to Windows that the drive size is something it's not. A quick format won't fail as all that does is update the FAT.

On Windows you can use h2testw to check if the real size corresponds with the reported size, but depending on where the real capacity cut-off is, that could take a while!
 
Melmothxx said:
Downloader the formatter - it says it's an SDXC. I downloaded a speed test which said write speed benchmark - caching- was 7.797 mb/sec and with no caching 6.106.I could have done a full memory test but it takes almost a day!!! So, is it fake?
Click to expand...

A U3 card should be 30MB/s minimum sequential write speed
 
Right, I imported 25GB onto the card and it accepted them So, please advise, with a write speed of 7.7 (the Fake Device Test app) , a capacity of 25GB+ (the card says 128), U3 on the card, U1 on the packaging, the G7 Power saying its too slow, should I take a chance and make it the phones internal storage (which I'd like) , keep it as external storage (I have little use for this) or simply bin it as being potentially dangerous to the phone?
 
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