![WD40EFRX WD Red 4TB 3.5Inches 5.4K RPM Internal Hard Disk Drive. New Retail Factory Sealed With Full Manufacturer Warranty. WD40EFRX WD Red 4TB 3.5Inches 5.4K RPM Internal Hard Disk Drive. New Retail Factory Sealed With Full Manufacturer Warranty.](http://www.itworldz.com/images/detailed/19/4_TB.jpg)
WD40EFRX WD Red 4TB 3.5Inches 5.4K RPM Internal Hard Disk Drive. New Retail Factory Sealed With Full Manufacturer Warranty.
![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 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](https://m.media-amazon.com/images/I/51fudT-PKcL._AC_.jpg)
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
![Wholesale Stylish And Cheap BRAND WD40EFRX RED 4TB SATA 3.5 5400RPM Internal Desktop NAS Hard Disk | DHgate.Com Wholesale Stylish And Cheap BRAND WD40EFRX RED 4TB SATA 3.5 5400RPM Internal Desktop NAS Hard Disk | DHgate.Com](https://www.dhresource.com/0x0/f2/albu/g6/M00/AF/30/rBVaSFtVdYeAYXtFAAJs-tBSgOE979.jpg/wd40efrx-red-4tb-sata-3-5-quot-5400rpm-internal.jpg)
Wholesale Stylish And Cheap BRAND WD40EFRX RED 4TB SATA 3.5 5400RPM Internal Desktop NAS Hard Disk | DHgate.Com
![Western Digital Red NAS 4TB 5400RPM SATA 6Gb/s 64MB Cache 3.5" Enterprise Class Hard Drive - WD40EFRX - Drive Solutions Western Digital Red NAS 4TB 5400RPM SATA 6Gb/s 64MB Cache 3.5" Enterprise Class Hard Drive - WD40EFRX - Drive Solutions](https://drivesolutions.com/media/catalog/product/cache/b55480e2bc01638baed62655034f2eee/b/_/b_3.5-enterprise-sata11.jpg)
Western Digital Red NAS 4TB 5400RPM SATA 6Gb/s 64MB Cache 3.5" Enterprise Class Hard Drive - WD40EFRX - Drive Solutions
![WD Red Plus 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 64MB Cache, 3.5 Inch - WD40EFRX - Newegg.com WD Red Plus 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 64MB Cache, 3.5 Inch - WD40EFRX - Newegg.com](https://cdn.cnetcontent.com/syndication/feeds/wd/inline-content/9D/33817109DC1DF41AB7C65B89D574B1CAB2C684F1_WDREDPLUSSATA35HDD4TB_gallery.png)