Disconnects itself

After a year of use, I can say that it is a classic external hard drive that works fine, except that it sometimes disconnects itself. He did not do it at first, but now it happens regularly, perhaps once every two or three days ... We must then disconnect and reconnect.

My other two external drives have never had this problem, and this happens I plug the LG drive with one or two doses (the supplied cable has an additional USB port for the drive's power supply, but it works with one on my laptop).

Other than that, nothing special. 30 MB / s read.