Cobian Backup 11 Gravity is a multi-threaded backup program that can copy your files and folders to a destination of your choice—whether another folder, an external drive, a network location, or even an FTP server. It supports compression (ZIP, 7z), encryption (AES-256), and full, differential, and incremental backup types.
If backing up to a NAS (network attached storage): cobian backup 11 gravity user manual