Western Digital 4TB WD Blue PC Desktop Hard Drive, 3.5'' Internal CMR Hard Drive, 5400 RPM, 64MB Cache - WD40EZRZ
WD Gold 4TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6 Gb/s 128MB Cache 3.5 Inch - WD4002FYYZ,Reviewed: Western Digital 4TB Blue SSHD - PC Tech Reviews Australia,Western Digital 4TB WD Blue PC Desktop Hard Drive, 3.5'' Internal CMR Hard Drive, 5400 RPM, 64MB Cache - WD40EZRZ,WD40EZRZ-22GXCB0 Western Digital Blue 4TB 3.5