Got one of these recently and refunded it. This is such a loud drive, to the point where it sounds like it's about to die. Read the Amazon reviews for others who mention this. The 3TB and under are fine (have 2 of them), but anything over that I would avoid.
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https://www.amazon.co.uk/Toshiba-HDWC240EK3J1-Stor-Canvio-Desktop/dp/B00J3OI19Q
http://www.pcworld.com/article/3071180/storage/who-makes-the-most-reliable-hard-drive-latest-backblaze-survey-claims-to-know.html