NAKIVO Backup and Replication has a scalable architecture, that consists in some components (Director, Transporter and Backup Repository), and could be installed in several different way: including on Linux server and abbedded in NAS appliances. Until today there was only an official integrations with Synology and WD NAS, but potentially, using the Linux installer, you can install the transport role also on other Linux x86 based NAS. Now NAKIVO Backup & Replication v7 is available in QNAP App Center, and can be installed on x86-based QNAP NAS servers.