I have been using WD HDDs for two years , first I had a 500gb one, now I have purchased a new 1TB WD Elements HDD . It is a usb 3.0 HDD. Which means the data transfer rates are good.
You just need to take care of the data cable, keep it in a proper condition while not in use. because sometimes the excess folding of cables may damage the cable. And it is very hard to find the original cable .
One more good thing that WD has added is a pack of WD security softwares , which are very useful for the data security. If the software is not given inside the drive, then you can download it from the official website of WD.
I would recommend this HDD .
A fast, reliable, efficient, & secure way to keep data is to buy a WD HDD.