WD RED PLUS WD40EFZX 4TB 5.4K 128MB SATA III NASware 3.0 NX HA510 3.5
Amazon.com: Western Digital 4TB 3.5 Inch SATA III, 7200 RPM, 64 MB Cache Enterprise Hard Drive (Western Digital4000FYYZ) : Electronics,Amazon.com: (Old Model) WD Green 4TB Desktop Hard Drive: 3.5-inch, SATA 6 Gb/s, IntelliPower, 64MB Cache WD40EZRX : Electronics,WD RED PLUS WD40EFZX 4TB 5.4K 128MB SATA III NASware 3.0 NX HA510 3.5,WD 4TB 3.5