WD Red Plus WD40EFPX 4 TB Hard Drive – 3.5″ Internal – SATA (SATA/600)

Designed for NAS systems that have 1-5 drive bays, the 4TB WD Red Plus SATA 6Gb/s 3.5 Internal NAS Hard Drive is extensively tested for compatibility in the unique 24×7 operating environment and demanding system requirements of home and small office NAS. With a 35 percent MTBF improvement over standard desktop drives, the WD Red drive is designed and manufactured to be a more reliable and robust solution.The secret is in the technologyNASware Advanced firmware technology built into every WD Red drive, enables seamless integration, robust data protection and optimal performance for systems operating in NAS and RAID environments. This innovative technology reduces power consumption and lowers the operating temperature, resulting in a more reliable and affordable solution for always on NAS environments.