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![WD RED 4TB, 64MB CACHE, 5400 RPM, 3.5" SATA III NAS HARD DRIVE (UNTESTED/AS-IS) | eBay](https://i.ebayimg.com/images/g/~y4AAOSwQB5iORgc/s-l1200.jpg "WD RED 4TB, 64MB CACHE, 5400 RPM, 3.5" SATA III NAS HARD DRIVE (UNTESTED/AS-IS) | eBay")