The NAS works when he wants, especially because of the software that is more than basic and quite unstable. First backup lost after simply changed the time it has deleted all users and although the data are still present on the disk can not be accessed. Everything had to format and start over ... with great difficulty because he felt that the user already existed, but did not recognize neither the key nor the code (logic: /). I dare not put it at the time for fear of losing yet all users and having to re-upload my 400GB of data it took more than a week to record, by logging every hour (it click on it if the session expires after one hour, and of course, we can not change this time. very convenient when using a NAS for synchronizing folders Sizeable pro!). For over 15 days, backup, he finally "mouline" I should say, never see the end ... Another downside: the service is nonexistent. They do not respond to emails, it's really nice to see as much solicitude for their customers. Suffice to say that the next, it will not be a myDitto. Avoid unless you want to pull your hair ...