One of the primary uses for NAS servers is to back up your data. QNAP has taken this feature to another level and incorporated several useful features.
Don't be put off by the small number of icons in this area. QNAP has turned data backup into an art form.
If you have ever wondered what all of those USB ports are on QNAP servers, here is the area you need to explore. On the front of the flagship models is a USB port with a button that says Backup. Here you choose where you want your portable device backed up or sync'ed to.
More USB One Touch Copy functions can be set in this area.
Remote Replication allows you to backup one portion of the NAS to another or even an external server.
Apple Time Machine is also supported.