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Toshiba Launches Next Generation Nearline Enterprise Capacity HDD with Industry's Largest 5TB Recording Capacity

Toshiba Corporation (TOKYO:6502) today announced the launch of nearline enterprise capacity HDDs with a 5TB[1] recording capacity, the industry’s largest[2] for models that are not filled with helium gas. Sample shipping of the MG04 series will start in the late half of February. The SAS MG04SCA and SATA MG04ACA series, both with an interface speed of 6Gbit/s, will be available in the 3.5-inch form factor.

Toshiba: 5TB Nearline Enterprise HDD (Photo: Business Wire)

Toshiba: 5TB Nearline Enterprise HDD (Photo: Business Wire)

The new series uses 1TB/platter (max) magnetic disks to realize a capacity of 5TB and achieve an internal data transfer rate of 205MiB/s, 24% faster than Toshiba’s current models, MG03SCA400 and MG03ACA400 (4TB, 165MiB/s). The series is engineered for the high-capacity demands of mid-tier servers and cloud application workloads, and for capacity-optimized data center storage systems that benefit from high capacity per spindle.

System builders have the option of selecting a Sanitize Devise Feature set function for each model, which makes it possible to invalidate important data recorded on the magnetic disks at a blink. The series also provides, as an option, persistent write cache technologies that help protect against data-loss in the event of sudden power loss.

The new products are also halogen- and antimony-free[3] and RoHS compatible[4].

[1] Definition of capacity: Toshiba defines a gigabyte (GB) as 1,000,000,000 bytes and a terabyte (TB) as 1,000,000,000,000 bytes. A computer operating system, however, reports storage capacity using powers of 2 for the definition of 1GB = 230 = 1,073,741,824 bytes and therefore shows less storage capacity. Available storage capacity (including examples of various media files) will vary based on file size, formatting, settings, software and operating system, such as Microsoft Operating System and/or pre-installed software applications, or media content. Actual formatted capacity may vary.
[2] Toshiba survey as of February 13, 2014
[3] Toshiba Semiconductor & Storage Products Company defines halogen-free and antimony-free hard disk drive products as those meeting all of the following requirements:
(a) containing bromine (Br) and chlorine (Cl) at no more than 900 parts per million (ppm) by weight for each element, and containing bromine and chlorine in an aggregate amount not exceeding 1500 ppm by weight; and (b) containing no more than 1000 ppm antimony (Sb) by weight.
For the avoidance of doubt, Halogen-Free/Antimony-Free SSD or HDD products may not be entirely free of bromine, chlorine, or antimony, and may contain other element of the halogen family.
[4] Toshiba Semiconductor & Storage Products Company defines "RoHS Directive" as the Directive 2011/65/EC of the European Parliament and of the Council of 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment.

Outline of the New Products

Model Name  



Sanitize Device
Feature set

MG04SCA500x   5TB   SAS   NO
MG04SCA400x 4TB
MG04SCA300x 3TB
MG04SCA200x 2TB
MG04SCA400xY 4TB
MG04SCA300xY 3TB
MG04SCA200xY   2TB    
MG04ACA400x 4TB
MG04ACA300x 3TB
MG04ACA200x 2TB
MG04ACA400xY 4TB
MG04ACA300xY 3TB
MG04ACA200xY   2TB    

*Logical data block length:x=A, 4kB(fixed length), x=E,512B(emulation)


Main Specifications of the New Products

SAS Interface Models

Model Name   MG04SCA500A
















Formatted Capacity 5TB   4TB   3TB   2TB
Interface SAS-2.0
Interface Speed 1.5Gbit/s, 3.0Gbit/s, 6.0Gbit/s
Rotation Speed 7,200rpm
Buffer Size 64MiB 5

Logical Data Block
Length(fixed length)

MG04SCAxxxA, MG04SCAxxxAY : 4,096B, 4,160B, 4,224B

MG04SCAxxxE, MG04SCAxxxEY : 512 B, 520 B, 528 B (emulation)

Dimension (W)101.6 mm×(L)147.0 mm×(H)26.1 mm
Weight 720g (Max.)
Power Consumption  
  Read/Write 11.3 W Typ.
Low Power Idle 6.2 W Typ.

Energy Consumption

0.00124   0.00155 0.00207   0.00310
Category Name C   B
Acoustics (ready) 31 dB

Sanitize Device
Feature Set


SATA Interface Models

Model Name   MG04ACA500A
















Formatted Capacity 5TB   4TB   3TB   2TB
Interface SATA-2.6/3.0
Interface Speed 1.5Gbit/s, 3.0Gbit/s, 6.0Gbit/s
Rotation Speed 7,200rpm
Buffer Size 128MiB

Logical Data Block

MG04ACAxxxA, MG04ACAxxxAY : 4,096B

MG04ACAxxxE, MG04ACAxxxEY : 512 B (emulation)

Dimension (W)101.6 mm×(L)147.0 mm×(H)26.1 mm
Weight 720g (Max.)
Power Consumption  
  Read/Write 11.3 W Typ.
Low Power Idle 6.0 W Typ.

Energy Consumption

0.00120   0.00150 0.00200   0.00300
Category Name C   B
Acoustics (ready) 31 dB

Sanitize Device
Feature Set


[5] 1MiB (mebibyte)=1,048,576B(220)
[6] Energy Consumption Efficiency: Energy consumption efficiency is calculated based on power consumption divided by formatted capacity, as defined by Japanese law

Customer Inquiries:
Storage Products Division
Tel: +81-3-3457-2445

Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.

About Toshiba
Toshiba is a world-leading diversified manufacturer, solutions provider and marketer of advanced electronic and electrical products and systems. Toshiba Group brings innovation and imagination to a wide range of businesses: digital products, including LCD TVs, notebook PCs, retail solutions and MFPs; electronic devices, including semiconductors, storage products and materials; industrial and social infrastructure systems, including power generation systems, smart community solutions, medical systems and escalators & elevators; and home appliances.
Toshiba was founded in 1875, and today operates a global network of more than 590 consolidated companies, with 206,000 employees worldwide and annual sales surpassing 5.8 trillion yen (US$61 billion). Visit Toshiba's web site at www.toshiba.co.jp/index.htm

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