Amazon.com: Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5
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 Se Wd4000F9Yz 4Tb 7200Rpm Sata3/Sata 60 Gb/S 64Mb 3.5,Western Digital WD Purple Harddisk 3.5