The MG04ACA Enterprise Capacity HDD Models Provide Capacities Up To 6 TB And 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 And Advanced Format Sector Technologies For Optimum Capacity And 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 And Reduce The Footprint And Operational Burden Of Business Critical Servers And Storage Systems. 512e Or 4Kn Advanced Format Sector Technology Models Are Available. 4Kn Models (MG04ACAxxxA) Offer Optimum Performance And Compatibility With The 4K Applications And Operating Environments. 512e Models (MG04ACAxxxE) Provide Support For Legacy Applications And Operating Environments That Require 512 B Sector Lengths.