With a search for a reliable quality-reasonable price ratio, I ssay Western Digital, a little big but ok, very compact but expensive + Co., gonna, Verbatim, with its stop button 3TB time or was partitioned into 2 + 1TB ... it'll also but here lately that one of them would not open its 2TB partition (1to OK) to do anything. It took me to reformat. I had a verbatim 2ém clone so I have not lost anything but it's very very unpleasant. And since QLQ years of Seagate in all its forms, mini Pocket 1 and 2TB (nice, very compact in practice direct backup) and 3.5 "up to 4TB galore, with very good value for money 3TB if it matches the type of storage you want to do. This is my case, as the docs (images, films) I accumulate sort, class, distributed ... and always with a clone. For the now everything is going. The stop button can be found on the Hub 7 port with individual stop buttons. There ordered 4 and 11 received in proper transport packaging cardboard box BHL against signature. All this is good.