I find front ports to often error (silently) and the speed drop back to USB 1.0
I have been storing all of my pictures and video files (~ 400MB) on a 1TB SimpleTech external HDD. I just bought a 2TB WD Elements external HDD to backup those files and to store additional movie files. Both are USB2.0, both have separate AC power. One is connected to a back port, and one to a front port. Both have been configured for max performance. Problem: when I start transfering files from the 1TB to the 2TB, the speed starts out at ~ 19MB/s max and slowly drops all the way down to < 1MB/s after a couple hours. Nothing else is running the background, and both drives are on a desktop in the open. Even if I only copy small chunks of data at a time, the transfer speed degrades. Is this normal (I think and hope not)? What is causing this and what can I do about it? I know I should be using an internal ASTA drive, but that's water under the bridge at this point. Thanks!

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