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Amazon.com: Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 128 MB Cache, 3.5" -WD40EFZX : Electronics
Amazon.com: WD Blue 250 GB Mobile Hard Drive: 2.5 Inch, 5400 RPM, SATA II, 8 MB Cache - WD2500BPVT : Electronics
Amazon.com: Hitachi 0A56415 2.5-Inch 250GB 5400 RPM SATA Internal Hard Drive : Electronics
Amazon.com: WD Blue WD5000LPVT 500 GB 2.534; Internal Hard Drive - SATA - 5400 rpm - 8 MB Buffer - Hot Swappable - WD5000LPVT : Office Products
Amazon.com: Toshiba 500GB 2.5-inch SATA Laptop Hard Drive (5400rpm, 8MB Cache) MQ01ABD050 : Electronics
![Amazon.com: WD Purple 6TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD60PURX [Old Version] : Electronics](https://m.media-amazon.com/images/I/71IoMjEnmyL._AC_UF894,1000_QL80_.jpg "Amazon.com: WD Purple 6TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD60PURX [Old Version] : Electronics")
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Amazon.com: WD Blue 1TB Desktop Hard Disk Drive - 5400 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch - WD10EZRZ : Electronics
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Amazon.com: Western Digital 10TB WD Red NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD100EFAX (Old Version) : Electronics
Amazon.com: WD Blue 4TB PC Hard Drive - 5400 RPM Class, SATA 6 Gb/s, 64 MB Cache, 3.5in - WD40EZRZ (Renewed) : Electronics
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