I was picked up by such a hard drive friends who understand computers. As explained, now it is one of the optimal discs. I liked the fact that I fit into the budget and that the hard drive works quickly. And, of course, WD (before that I had and still have an external 250GB WD hard drive) Different pros: fast work, normal volume that almost any system sees, quiet and, as my friends-experts explained to me, and as I myself checked with the program, it practically does not heat up With its cons: I do not understand. For me, the main thing is fast work and reliability. it is here