this post was submitted on 04 Oct 2025
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I bought a 2242 size m.2 SSD to use as lvm cache for an external DAS I'm working with. The drive is supposed to be 64GB, but when I pulled it up in gparted I found the below. (I created the partition to see what would happen.) If my calculations are correct, this drive is acting like a 1TB drive instead of a 64GB drive.

If my calculator is correct, a 64GB drive should be 59.6 GiB instead of 931.5 GiB.

So, would you trust this drive?

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[–] nao@sh.itjust.works 21 points 2 hours ago* (last edited 2 hours ago)

If you want to test it yourself, you could use a tool like f3:

f3 is a simple tool that tests flash cards capacity and performance to see if they live up to claimed specifications. It fills the device with pseudorandom data and then checks if it returns the same on reading.

https://fight-flash-fraud.readthedocs.io/en/latest/introduction.html

[–] Truscape@lemmy.blahaj.zone 31 points 3 hours ago

Hell no, that kind of behavior is what those aliexpress/wish knockoff drives do to fool the customer base stupid enough to trust the listing.

I would go so far as to say to get a refund and go to an actual store so you're not buying bootlegs.

[–] MurrayL@lemmy.world 16 points 3 hours ago* (last edited 3 hours ago)

As others said, this looks like a fake drive sold as a scam. Chances are high the drive controller has been modified to report incorrect values. Any data written to that space beyond its actual capacity will either overwrite existing data or go straight to dev/null

[–] hendrik@palaver.p3x.de 7 points 2 hours ago* (last edited 2 hours ago)

I'd test it with a program like https://github.com/AltraMayor/f3

[–] ZonenRanslite@feddit.org 9 points 3 hours ago

So, would you trust this drive?

No

[–] thingsiplay@beehaw.org 4 points 2 hours ago

There are SSD and usb stick drives with a fake size programmed into it. There are scams who sell higher capacity, but delivering lower capacity. Looking in file browser (or other tools), it still looks like 1 TB. But as soon as you fill the real 64 GB, the rest of the data is written into the void = data loss. So from the looks like this drive was originally a fake drive. And whoever sells it to you probably knows it and tries to sell it correctly as a 64 GB (or maybe the original size is even different), after getting scammed maybe?

Whatever the original story is, this drive looks fishy, acts fishy and is probably a fish. I don't know how much you spend on this, but I would not use it, throw it away. Please don't give or sell it to someone else, or keep it as an evidence. If possible, report the person who sold it to you.

[–] poinck@lemmy.world 3 points 3 hours ago* (last edited 3 hours ago)

I am just guessing: Could sector size have something to do with it?

And no, I wouldn't trust it.