I purchase Dell 1Tb Usb 3.0 external hard drive its transfer rate is very good.
it is too fast .it serch your data without delay .
The seek time is also less, when you give any request to find data then with out any delay you got yoUR DATA.I start copying of Photos then it done 2 gb data in 2 mins.
the hard drive also not produce any sound during copy and paste also .
The price is high but for good quality you can pay that some of amount.
I want to suggest you that if you want any hard drive then try to buy it.
the look is also good.
it is robust and durable .
Thank you