Western Digital WD40EFRX internal HDD 4TB (8.9 cm (3.5 inches), 5400RPM, 64MB cache, SATA) (Personal Computers)
As such, the perfect plate for a NAS: fast (for 5900 rpm), quiet, economical, reliable. Unfortunately, many of 3TB models and all models of 4TB WD RED series have a firmware bug, which ensures that the 24/7 operation of the panels in certain circumst