Western Digital Red Pro NAS WD4003FFBX-68MU3N0 4 TB 3,5" disco rigido desktop SATA
You are buying WD 4TB Sata Hard drive as shown in pictures. I have chacked in Crystal Disk, It is showing 26 power on cycles and 20844 Used hours. Western Digital 4 TB 3.5" SATA NASware 3.0 7.2K Desktop Hard Drive WD4003FFBX-68MU3N0.