Runs very quietly. Making a difference to the old hard drive with 5400 rpm I do not hear. That's faster than the old one, I can not determine. Many times I have read that is on the hard drive and not HGST Hitachi. Do not worry, you did not get the wrong plate, it has the following reason: Hitachi was acquired by Western Digital. Who wants to know the selling agency: Give a Google HGST. In Wikipedia everything is described in detail. I'm very satisfied with the board, according to reviews of the best there is. Strong buy recommendation