WD Blue 4TB PC Hard Drive - 5400 RPM Class, SATA 6 Gb/s, 256 MB Cache, 3.5 | 3149 EGP
WD Blue 4TB Internal SATA Hard Drive for Desktops WDBH2D0040HNC-NRSN - Best Buy
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Amazon.com: Western Digital(WD) BLUE Deskptop 1TB( 1Terabyte) 3.5"Hard Disk Drive, 5400~7200RPM, SATA3 ( 6.0GB/s), 64MB Cache, IDEAL for PC/Mac/CCTV/NAS/DVR/Raid and SATA Applications, 1YR Warranty (Blue) : Electronics
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Why are WD Blue HDD's so popular? Western Digital Blue 1TB Review - YouTube