I have two external USB drives connected to my 2012 Mac mini, and am finding transfer speeds between the two to be really slow. I need to transfer 38GB of stuff. With rsync, I was getting ~60MBps. Canceled that and moved to Finder and am getting an estimate of ~9 hours to complete the operation.
I did restart the Mac mini hoping it would improve things, but no change. Thoughts on how to improve this?