Toshiba MG03ACA400 4TB SATA Hard Drive

Toshiba Part #/MPN: MG03ACA400

DiscTech Item #: TOS-MG03ACA400-RF-OE

  • Special Order - Ships in 5-10 business days
    Special Order - Ships in 5-10 business days

    This item has a lead time for fulfilment (as listed), this is approximate. Your credit card will be authorized in full on the day of ordering; it will not be charged until the day of shipment.


Enterprise Grade

Capacity: 4TB

Speed: 7,200RPM

Interface Types: SATA

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Sustained Throughput: 165

Average Seek Time: 8.5 / 9.5

Electrical Interface: SATA 600 - 6.0Gbps

On-Board Cache: 64MB

Toshiba MG03ACA400 4TB 7.2K 6Gbps Enterprise SATA Hard Drive - Refurbished

Toshiba MG03ACA400 4TB / 4000GB 7,200 RPM 6.0Gbps Enterprise SATA Hard Drive - Refurbished

The Toshiba MG03ACA/MG03SCA series HDDs are designed to support enterprise applications where reliability, high capacity, and performance are required. The series is ideally suited for data archives and digital records storage, entry and business critical server and storage systems, disk backup systems—including remote sites for data protection and business continuity, and tiered virtual infrastructure for public and private cloud deployments (IaaS and PaaS).

The optional SATA self-encrypting (SED) models support fast and secure cryptographic erase using both the latest T13 SANITIZE crypto-scramble protocol and the older T13 ATA Security Erase command protocol. The optional SAS SED models support both the T10 SANITIZE crypto-erase feature and the Trusted Computing Group Enterprise Security Sub-Classification protocols. These proven, industry-standard security technologies support “nearly instantaneous” cryptographic-erase of user data to enable fast and secure device retirement or redeployment. Using SEDs can eliminate the need for lengthy data overwrite cycles and reduce IT department expenses associated with secure data destruction and device sanitization.

The series leverages the expertise and history of Toshiba in enterprise class storage and offers similar features as traditional enterprise-class drives including 24 x 7 operation and Error Correction (ECC). The MG0ACA SATA interface models support the ATA Enhanced Secure Cryptographic Erase function.


  • Lowest Cost Per GB Enterprise Storage Option
  • 6 Gb/sec SAS and 6 Gb/sec (SATA) Interfaces
  • Error Correction (ECC)
  • Optional Self-Encrypting (SED) Models


    This drive is compatible with any server that accepts 3.5"x1"(LFF) SATA hard drives.

Part NumberMG03ACA400
Formatted capacity4TB
Buffer Size64MiB FIFO ring buffer
Rotation Speed7,200 RPM
Average Latency Time4.17ms
Average seek time
- Read
- Write

- 8.5ms
- 9.5ms
Sustained transfer rate (Max.)165 MB/s (4TB models); 155 MB/s (1TB, 2TB, 3TB models)
Load/Unload600,000 times
MTTF1,200,000 hours
Operation condition24 hours/day, 7day/week, 100% duty
Supply Voltage
Allowable Voltage5V±5% , 12V±5%
Power Consumption
Read/Write11.3 watts
Low power idle6.0 watts
Physical Size
Dimensions (W) x (D) x (H)101.6 mm x 147 mm x 26.1 mm
Weight720g (Max.)
Operating5 ~ 55°C
Non-operating-40° ~ 70°C
- Operating

- Non-operating

- 7.35m/s2 (0.75G, 5~300Hz)
- 2.45m/s2 (0.25G, 300~500Hz)
- 49 m/s2 (5G, 5~500Hz)
- Operating
- Non-operating

- 686 m/s2 (70G) 2ms
- 2,940 m/s2 (300G) 2ms
Acoustics31 dB

Click here to view the manufacturer's item description/brochure

Weight: 1.8 lb

Warranty: 1 Year DiscTech


Condition Levels Explained

These products have had NO problems or failures, they merely have some usage. The product has been professionally returned to excellent condition. These items have been fully tested, formatted (if appropriate) &repackaged. Hard drives are fully vetted for surface defects and wear, only healthy disks are approved for resale to our customers. Please see our refurbishing process for more details. Watch a video about our refurbishing process

1 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty