This is my personal experience about this external hard drive. I am using this external drive last five months. Its work very fast and data transfer speed is also good for me. This external drive is very good for large data transfer, its everything good. I want to send 15 GB data to this external drive from my laptop, its transfer speed is very good but data transfer stops in middle. I wait few minute but not again transfer. I format this drive and try to send other file but speed is poor at present time.
If you want to buy this external hard disk, please follow some points.
Check its quality.
Check its USB cable.
Its transfer speed is same as like written on the box.