Fast, this disc. Once partitioned, I have filed a glance the contents of two SSD drives (64 and 128 gigas) and then, almost as quickly, a hundred gigas taken from my Hyperdrive UDMA. If I look, I have enough to store more than 700 gigabytes. The main advantage of this drive is to keep very heavy data and to sort the much later without the need to save space. I emphasize that this "giant" capable of storing a TB and using a USB-type ultra fast connection 3 in the palm of your hand and slips easily into a pants pocket. Everywhere can take his mess and back every day sorting and classification of files without anything overflows. In short, it is convenient, lightweight, fast, available in blue, red, and of course black, all for less than a hundred euros.
