Then there is the traffic cops and handshakes that get involved. Transfer speeds on USB are defined as the theoretical maximum if it is a constant burst of transfer in a nice controlled environment.
Just order of magnitude should / should not be better in this situation?Ĥ0MB/s is mega bits per second. I am NOT looking to quantify the transfer rate to 3 decimal places. But would you accept 70MB/s from a USB 3 in real life? Yes, I know - there's theoretical speeds and then real life.
USB 3 TRANSFER RATE 100MPS FULL
The 150GB file is all that's on either of them (so not an issue with a drive almost full / can't find free sectors). The drives have a 3.0 port but the drive inside is crap? or even a 5400RPM drive transfers faster than usb3
USB 3 TRANSFER RATE 100MPS HOW TO
Start copying again and file explorer shows it as about 70MB/s.īetter, but not anything near the 625MB/sec that 3.0 should get.Īny thoughts on how to figure out the bottleneck? A bad cable? the computer? the computer ports aren't really 3.0? I move that drive to the front so both are in USB 3 / blue USB ports. So, then I realized 1 drive was plugged into a USB 2. That's megabytes per second, right? Googling USB transfer rate, I find pages like this I have to transfer a 150GB file between 2 recently bought USB 3.0 external hard drives using a recently bought HP desktop and this is a good chance for me to clear up my ignorance of transfer speeds.Īt first, the source USB drive was plugged in the back of the desktop (the USB ports are black there) and the the target drive was plugged into a front blue USB port (and these say SS with the USB logo).ĭrag and dropping in file explorer (win 10 with 8 GB RAM), it showed a graph of the transfer and said the speed was around 40 MB/s.
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