Western Digital WD Red WD40EFRX 4TB SATA 6 Gb/s Hard Disk Drive with NASware

Item model number ‎WD40EFRX. Series ‎WD40EFRX. Hard Drive Interface ‎SATA 6 GB/s. Hard Disk Rotational Speed ‎5400 RPM. Manufacturer ‎Western Digital.

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