I'm having trouble with my SanDisk Ultra SD card. I ran a write speed test using H2testw and it showed a speed of 7MB/s, but when I try to copy files from my computer—which has an NVMe drive that's currently full—the transfer speed drops to around 500KB/s. I'm using the same adapter for both tests, so I'm not sure what's causing the slowdown. I've also tried formatting the card several times, but it hasn't helped. Any ideas?
2 Answers
I’m experiencing a similar issue with small files on mine too, but when I tried a different SD card, all transfer speeds were normal—even with smaller files. It could be that your SD card is having issues.
Just to clarify, did you perform the speed test on the same computer where you're seeing the slow transfer speeds? If you're copying a lot of small files, that can really drag down your speeds compared to moving just a few large files. The 7 MB/s you got could be under ideal conditions, like with a single large file transfer.
Related Questions
Lenovo Thinkpad Stuck In Update Loop Install FilterDriverU2_Reload