Is this NAS compatible with both Windows and macOS systems for file sharing and backup purposes?

Yes, this NAS supports file sharing protocols like SMB/AFP/NFS which are compatible with both Windows and macOS systems.

Questions & Answers: Synology DS225+ Intel 2-Bay NAS with 6GB RAM and 12TB (2 x 6TB) of Synology Plus Drives Fully Assembled and Tested By CustomTechSales

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Synology DS225+ Intel 2-Bay NAS with 6GB RAM and 12TB (2 x 6TB) of Synology Plus Drives Fully Assembled and Tested By CustomTechSales