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Amazon.com: Western Digital WD40EFRX WD Red NAS Hard Drive - Hard drive - 4 TB - internal - 3.5 inch - SATA 6Gb/s - buffer: 64 MB - for WD My Cloud EX2, EX4 : Electronics
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WD40EFRX-68WT0N0 2060-771945-001 REV P1 771945-F01 02PD2 771945 WD40EFRX 3.5'' SATA circuit board replacement +FW Western Digital WD repair fix swap PCB circuit board parts donor board replacement burnt controller board green card
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