I have this Transcend Storage Jet external HDD. I was using it with my desktop Win 10 which supported USB 2.0. The transfer rate was satisfactory over 15MB/s. However, when I tried it on my new Lenovo ideapad 510 which supports USB 3.0 and using its USB 3.0 port, the transfer rate is going at a few 100 KB/s.
The copy window seems to pause a long time interval and only updates the speed and progress bar for just 1 frame every so often. Below is the CrystalDiskMark of this drive:
I've also tried the USB 2.0 ports on my laptop. The results are similar except for SeqQ32T1 and Seq which achieved > 30 MB/s
I've tried the following methods.
Disable Quick Removal Method
I've tried the most accepted answer of this: Extremely slow USB transfer speed but the problems are:
- It doesn't work
- My old PC also does quick removal and there was no transfer problem.
However, using TeraCopy, the speed can achieve 32MB/s with the USB 2 port on my laptop. But this is just avoiding the problem, not actually solving it. Actually, the result is exactly the same using Explorer to copy.