Remote backup NAS to NAS

Hi, I want to backup part my QNAP TS-h665-8G to a TS-431 in another geographical region. What would be the best and safest way to do so?

Thanks.

Connect the 2 networks using a VPN and setup HBS3 with the backup parameters you want.

You may refer to the two FAQs below. If you have any questions, feel free to bring them up for discussion. Thanks!

How to connect a NAS to QuWAN Orchestrator using QuWAN Express and the Super Node Service? | QNAP

How to Set Up Remote Backup to a Remote NAS via QuWAN Express Supernode | QNAP