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2T HD - Slow USB transfer speeds, but fast as SATA
I have a WD 2T HD 7200 RPM. Plugged in as a USB drive, the transfers speed is 7mg/sec, but if I use it as an internal SATA it's about 190mg/sec. I've tried 3 different USB interfaces with the 2T drive with the same results. Other USB HD's that I have aren't slow like this one is even with the same USB interface.
I have it set for better performance not quick removal and indexing is turned off. I bought this drive as an external USB HD and it’s 2.0 USB. I put it back in it’s original case and that didn’t help. It certainly wasn’t this slow with XP or WIN 7. Any suggestions?