When it comes to top external hard disk brands, Toshiba normally won't feature among them. If you ask me which is the best external hard disk brand, my answer will be Toshiba all day. The selling point of Toshiba hard disks are its price. You can get quality hard disks at much lower rates than other top brands.
I bought Toshiba Canvio 1TB hard disk about two years back. When it comes to the design, it is pretty ordinary. However the performance is as great as you could ever get. I am really satisfied with Toshiba Canvio after using it for 2 years. There was no issue, file transfers were seamless. I use this hard disk for storing my movies. Now it is close to its memory capacity and it never lagged or got stuck. The performance is always the same. I have dropped it quite a few time and it is just fine. It is portable and easily fits in your pocket.
Toshiba Canvio is a simply designed hard disk which can deliver better performance than you expect. It is one of the best hard disk I ever used ( I own 3, one from seagate, samsung and toshiba). The only disadvantage is that it just has USB 2.0, Toshiba could have added USB 3.0 for that price.
Toshiba Canvio 1TB Hard Disk Specifications
Connectivity: USB 2.0
Dimensions: 16.5 * 79 * 188.9 mm
Size: 2.5 Inch