Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5
Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5,Western Digital WD40EFRX WD Red NAS Hard Drive - Hard Drive - 4 TB - Internal - 3.5 inch - SATA 6Gb/s - Buffer: 64 MB - for WD My Cloud EX2, EX4: ,Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5