The Synology DS725+ is a capable 2-bay NAS solution that can adapt demand to growing storage demands. It optionally supports up to seven drives and features two M.2 slots for SSD caching. Powered by Synology Disk Manager (DSM), it offers flexible all in one solution for data sharing , synronization , backup , and surveillance. It is supported by 3 years warranty and can be extendable to 5 years.