The MG04ACA Enterprise Capacity HDD models provide capacities up to 6 TB & 7, 200 rpm performance, in a robust design engineered for nearline business-critical workloads. The MG04ACA series utilizes industry-standard 3.5-inch 26.1 mm height form factor & Advanced Format sector technologies for optimum capacity & data reliability. 512e models support Toshiba Persistent Write Cache technology which helps enhance performance with handling data in the event of a sudden loss of power. Equipped with SATA 6.0 Gbit/s interface, the Enterprise Capacity MG04ACA models help save rack space & reduce the footprint & operational burden of business critical servers & storage systems. 512e or 4 Kn Advanced Format sector technology models are available. 4 Kn models (MG04ACAxxx A) offer optimum performance & compatibility with the 4K applications & operating environments. 512e models (MG04ACAxxx E) provide support for legacy applications & operating environments that require 512 B sector lengths. Features Industry Standard 3.5-inch 26.1mm Height Form Factor. Large-Capacity (6 / 5 / 4 / 3 / 2 TB models). 7, 200 rpm Performance. SATA 6.0 Gbit/s Interface. 550 Total TB Transferred per Year Workload Rating. 512e or 4 Kn Advanced Format Sector Technology. (512e Model & 6TB Model) Introducing Toshiba Persistent Write Cache Technology for Data-Loss Protection in Sudden Power-Loss Events.