Toshiba MG04ACA400E 4TB SATA 512e Enterprise Hard Drive


  • Industry Standard 3.5-inch 26.1 mm Height Form-Factor
  • 7,200 rpm Performance
  • 550 Total TB Transferred per Year Workload Rating
  • 4Kn, 512n Native Sector Technology, or 512e Advanced Format Sector Technology
  • Sanitize Instant Erase (SIE) Option Available

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Toshiba MG04ACA400E 4TB SATA 512e Enterprise Hard Drive $229.99

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Toshiba MG04ACA400E 4TB SATA 512e Enterprise Hard Drive

Tier 2 Business-Critical Servers and Storage Systems

The MG04ACA and MG04SCAxxEx 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. Models utilize industry-standard 3.5-inch 26.1 mm height form factor and Advanced Format sector technologies for optimum capacity and data reliability.

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. 512e models support Toshiba Persistent Write Cache technology which helps enhance performance with handling data in the event of a sudden loss of power.

MG04ACA are equipped with a SATA 6.0 Gbit/s interface and MG04SCAxxEx models are equipped with a 12 Gbit/s SAS interface to help save rack space and reduce the footprint and operational burden of business critical servers and storage systems.

The Enterprise Capacity HDD 512 native, 7,200 rpm models (MG04ACA-N, MG04SCAxxEN) come in a robust design up of 1, 2 and 4 TB in a 3.5-inch form factor. Features of MG04ACA-N series, with a SATA 6 Gbit/s interface, MG04SCAxxEN series, with a 12 Gbit/s SAS interface, include industry-standard 512 native format sector technology for environments and applications that require 512 native. Model options supporting Sanitize Instant Erase (SIE) are also available. This feature randomizes data instantly in case of unintended disclosure in the event that drives are re-purposed or moved outside of data center environments.

Key Features

An Extensive Lineup

Up to 6 TB of capacity in SATA or SAS models with 512e or 4Kn Advanced Format Sector Technology.

Enterprise Grade Reliability

With an annual workload of 550 TB and MTTF of 1.4 million hours, the MG04 Series is designed for mid-line/nearline business-critical workloads.

Toshiba Persistent Write Cache Technology

Data-Loss Protection in Sudden Power-Loss Events (512e Model and 6 TB Model).


  • Engineered for Mid-line / Nearline Business Critical Workloads
  • Tier 2 Business-Critical Servers and Storage Systems
  • Servers Supporting Application Workloads that Benefit from High Capacity per Spindle
  • Capacity-Optimized Data Center Storage Systems


MFG #: MG04ACA400E

Available Capacities 4 TB, 2 TB, 1 TB
Form Factor 3.5-inch
Interface SATA: 6 Gbit/s
SAS: 12 Gbit/s
Buffer Size 128 MiB
Rotation Speed 7200 rpm
Data Transfer Speed
( Sustained )
SATA 4 TB: 185 MiB/s
SATA 2 TB: 175 MiB/s
SATA 512n: 195 MiB/s
SAS: 205 MiB/s
SAS-512n: 195 MiB/s
Power Consumption
( Idle – A ) ( Typ. )
7.5 W
MTTF 1 400 000 h
Weight ( Max ) SATA 4 TB, 2 TB: 720 g
SAS: 720g

What's Included

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