2x Seagate IronWolf ST4000VN008 4TB 3.5" 5980RPM SATA Desktop CCTV NAS HDD, RAID
Model Numbers: ST4000VN008. - Model: IronWolf NAS. - Capacity: 4TB each (8TB total). I only replaced them as I needed more capacity. - Building or expanding a NAS system. - Manufacturer: Seagate.