Bought during a flash sale on 77, it's a great deal! Large capacity, transfer rate USB3 ranging from 60 to 95 mb / s, is very good! Robust housing, non-glossy (perfect for fingerprints ...), but a little thick: 2cm. Is that it houses a 3 disk platters !! The connector is standard mini usb3, firm, no connection issues. Cable of about 40cm, but there are no worries in for some (all) small euros here or on the famous international auction site, up to 2m if needed. They are usually blue, to distinguish them from the usb2.
The LED flashes blue usb3, white usb2. At a glance, you know the connection type. This is convenient.
In conclusion: nothing to say it's perfect, and moreover, at an unbeatable price on Amazon, with delivery as always fast.