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#1
USB Flash Drive Performance
I have 3 Usb 2.0 drives. A 16GB Kingston, 8GB PNY and a 4GB PNY. When I copy a 1GB file I the Kingston runs at 10 MB/s for the first 30% of the file then drops off to 5 MB/s. The 8GB PNY has consistent 10 MB/s transfer speed. The 4GB runs at 5 MB/s.
All 3 run at ~25 MB/s when copying back to computer.
If flash just stores on memory internally, then why the speed difference?
Thought it might be USB protocol overhead but copying back to computer they run about the same.