On counterfeit SD cards
#17
(05-30-2020, 01:59 PM)diodelass Wrote: Addition: It's also worth noting that smaller cards are less likely to be fakes because they're easier to test.
A testing a 16-gigabyte card requires 16 gigabytes of test data, which is relatively easy to generate and handle. Testing a 1-terabyte card requires one terabyte of test data, which is rather a lot, and most people won't have the free storage space (I know I don't) or the time to complete a proper test. When you can identify a fake in a few minutes with your laptop, it's much harder to get away with shenanigans compared to when it takes hours and a proper workstation.

I've generally had good luck with SDs but we built a server at work on an SD card (so we could dedicate disk arrays for data/NAS) and it failed. Card felt weird and flexy and looks different from another. We have a few more servers running these cards without a hiccup, so it looks like just one made it through. And it was from Amazon, and I believe from a reputable seller or maybe straight from either Amazon/Sandisk. When it failed, it wasn't readable at all.

Note that if you have a Linux/Unix type machine with a command line, there are various checks you can do that don't require very large files. dd is one and is standard on every Unix type system I can think of (not certain whether it is stock in Mac OS/X but I'm pretty cerrtain it's available), and there are some specific utilities for this sort of thing. Check out this link: https://askubuntu.com/questions/737473/c...humb-drive
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Messages In This Thread
On counterfeit SD cards - by tkaiser - 04-18-2016, 02:56 AM
RE: On counterfeit SD cards - by jl_678 - 04-18-2016, 07:47 AM
RE: On counterfeit SD cards - by tkaiser - 04-18-2016, 08:27 AM
RE: On counterfeit SD cards - by psychedup - 04-18-2016, 11:15 PM
RE: On counterfeit SD cards - by tkaiser - 04-19-2016, 04:49 AM
RE: On counterfeit SD cards - by Shady2tree - 04-21-2016, 11:28 AM
RE: On counterfeit SD cards - by androsch - 04-21-2016, 12:13 PM
RE: On counterfeit SD cards - by Shady2tree - 04-21-2016, 01:30 PM
RE: On counterfeit SD cards - by androsch - 04-21-2016, 01:33 PM
RE: On counterfeit SD cards - by Rhymoore - 04-21-2016, 01:51 PM
RE: On counterfeit SD cards - by pine.tree - 04-21-2016, 04:57 PM
RE: On counterfeit SD cards - by ab1jx - 01-04-2020, 05:24 PM
RE: On counterfeit SD cards - by ZuzanOlszew - 04-29-2020, 06:39 AM
RE: On counterfeit SD cards - by bcnaz - 01-04-2020, 06:22 PM
RE: On counterfeit SD cards - by zaius - 01-05-2020, 01:14 PM
RE: On counterfeit SD cards - by DrYak - 01-05-2021, 05:19 PM
RE: On counterfeit SD cards - by diodelass - 05-30-2020, 01:59 PM
RE: On counterfeit SD cards - by zer0sig - 08-25-2020, 11:26 AM
RE: On counterfeit SD cards - by Luterman - 02-21-2021, 08:31 AM
RE: On counterfeit SD cards - by barray - 03-04-2021, 11:25 AM
RE: On counterfeit SD cards - by biketool - 06-28-2021, 12:25 PM
RE: On counterfeit SD cards - by bcnaz - 08-03-2021, 07:40 PM
RE: On counterfeit SD cards - by biketool - 08-04-2021, 11:43 AM
RE: On counterfeit SD cards - by moriel5 - 05-18-2022, 01:52 PM

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