Backup options for Library

My dropbox folder is full after latest Roon upgrade, and I don’t want to pay for it. I have a backup on my computer, but which other options do I have?

You can backup to a usb pen or drive connected to your computer.

So a Kingston DataTraveler I (G4) - 16GB USB flash drive, 16 GB, USB 3.0, can do the job?

Have a look at how big the current backups are taking and see.

Some say usb pen are very slow.

He is talking about installing the server software on it not using it as a backup.