Amazon.com: Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5,Western Digital Blue 4tb Hard Disk, Internal, 5400 Rpm, 64MB 6GB/S Hard Drive 3.5 Inch (WD40EZRZ) SSD/HDD - 4 Tb HDD and Wd HDD price | Made-in-China.com,WD Blue 3.5,Western Digital Blue WD40EZRZ 4TB 3.5 SATA 6G HARD DRIVE 718037840161 | eBay