HDD Model WD40EFRX. HDD DCM HHRNNT2CAB. WD WD40EFRX-68WT0N0 4TB 3.5" SATA HDD PCB Board. This is a used WD WD40EFRX-68WT0N0 3.5" SATA HDD PCB Board removed from working Hard Disk Drive Assembly. PCB P/N: 2060-771945-002 Rev A.
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