Welcome • User Guide
ToS • Privacy • Canary
Donate • Bugs • License

©2024 Poal.co

484

I have observed that my corrupted flash drives had rather slow transfer rates to begin with.

For example, out of a 32 GB Transcend normal-size SD-HC card (undamaged transfer rate: 17 MB/s) and a 64 GB MicroSD-XC card (transfer rate: 80 MB/s), both roughy 5 years old, the former has several corrupt videos, while the latter has no corruption, at least so far. It has nothing to do with HC or XC, but presumably the quality of internal components and/or error management, how ever it works.

Many rather slow flash devices also did not lose data in several years, including an ~13 year old 1 GB SD card (brand name: Formula 1), but a high constant (normal) transfer rate is a marker of good quality, because flash storage needs to be of good quality to reach such transfer rates in first place.

I have observed that my corrupted flash drives had rather slow transfer rates **to begin with**. For example, out of a 32 GB Transcend normal-size SD-HC card (undamaged transfer rate: 17 MB/s) and a 64 GB MicroSD-XC card (transfer rate: 80 MB/s), both roughy 5 years old, the former has several corrupt videos, while **the latter has no corruption**, at least so far. It has nothing to do with HC or XC, but presumably the quality of internal components and/or error management, how ever it works. Many rather slow flash devices also did **not** lose data in several years, including an ~13 year old 1 GB SD card (brand name: *Formula 1*), but a high constant (normal) transfer rate is a marker of good quality, because flash storage needs to be of good quality to reach such transfer rates in first place.

(post is archived)

You are currently inside a comment thread.
Click here to see all the comments (3).
[–] • 0 pt

I think that these days manufacturers try to push speeds beyond what their NAND can handle, resulting into too much heat that finally degrades the drive.

[–] • 0 pt

So is temperature the only internal thing that limits flash storage speeds? Don't they have thermal throttling?

[–] • 0 pt

Some do, but their speed is limited like the Kioxia ones. Others have no thermal protection and just run at the fullest till they get degraded.

I believe that the reason behind all these troubles is that they don't use high quality memory chips for those cheap USB keys, so when you try to use them intensely or write a couple of GBs at once they reach their limits and it's all downhill from then onwards.