Small information: the exact capacity is 3,83To and it's a 5400rpm / min so great for storage and for life (less wear than 7200 / min). The USB3 is very helpful with transfer rates of 100MB / s on average instead of 30MB / s with USB2.
MOST (+)
-USB3
-Size And weight (much lighter than 2TB Western Digital Element)
-a single disk of 3.5 inches inside
-capacity price /
-light soft operation
General -design
The MINUS (-)
-ventilateur slightly audible
-temperature of 50 ° C during data transfer 12
-finishing "glossy" (hello fingerprints and fingerprints)
-No switch (well for that price, normal ...)
To see if it lasts, it is guaranteed for 2 years (I hope he will take 5 years in optimal conditions as my former 2TB Western Digital Element).