![Amazon.com: Western Digital 4TB WD Red NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, SMR, 256MB Cache, 3.5" - WD40EFAX : Electronics Amazon.com: Western Digital 4TB WD Red NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, SMR, 256MB Cache, 3.5" - WD40EFAX : Electronics](https://m.media-amazon.com/images/I/81ne13ZwLEL.jpg)
Amazon.com: Western Digital 4TB WD Red NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, SMR, 256MB Cache, 3.5" - WD40EFAX : Electronics
![Amazon.com: Western Digital Red Pro 4TB 3.5-Inch 7200rpm 64MB Cache NAS Hard Drive (WD4002FFWX) : Electronics Amazon.com: Western Digital Red Pro 4TB 3.5-Inch 7200rpm 64MB Cache NAS Hard Drive (WD4002FFWX) : Electronics](https://m.media-amazon.com/images/I/51z-0u+2dTL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Western Digital Red Pro 4TB 3.5-Inch 7200rpm 64MB Cache NAS Hard Drive (WD4002FFWX) : Electronics
![Western Digital [Domestic product] WD HDD Internal hard disk 3.5 inch 4TB WD Red Pro WD4003FFBX SATA3.0 7200rpm 256MB - want.jp Western Digital [Domestic product] WD HDD Internal hard disk 3.5 inch 4TB WD Red Pro WD4003FFBX SATA3.0 7200rpm 256MB - want.jp](https://s3-ap-northeast-1.amazonaws.com/media.want.jp/0F/A5E33DCCBDE10F/A5E33DCCBDE10F_4_1000.webp)
Western Digital [Domestic product] WD HDD Internal hard disk 3.5 inch 4TB WD Red Pro WD4003FFBX SATA3.0 7200rpm 256MB - want.jp
![Amazon.com: Western Digital Red Pro 4TB 3.5-Inch 7200rpm 64MB Cache NAS Hard Drive (WD4002FFWX) : Electronics Amazon.com: Western Digital Red Pro 4TB 3.5-Inch 7200rpm 64MB Cache NAS Hard Drive (WD4002FFWX) : Electronics](https://m.media-amazon.com/images/I/81jRK7Iqs4L._AC_UF350,350_QL80_.jpg)