Toshiba 16TB HDD MG08 SERIES MG08ACA16T                                              



Using an industry-leading[1] 9-disk design pioneered by Toshiba, the MG08 Series provides 16TB[2] of conventional magnetic recording (CMR) capacity and 7,200 rpm performance. The industry-standard 3.5-inch[3] form-factor integrates easily into cloud-scale storage infrastructure, business-critical servers and storage, and File and Object storage solutions. Toshiba’s precision industrial laser welding technology is put to use to seal helium inside the 9-disk mechanics. The massive 16TB capacity is delivered using proven CMR recording technology providing optimum application compatibility and data reliability. Available with either a SATA 6.0 Gbit/s or a 12.0 Gbit/s SAS interface[4], the MG08 Series models integrate easily into standard 3.5- inch drive bays to help reduce the footprint and operational burden of cloud-scale storage infrastructure, and business critical servers and storage systems.

Key Features

  • Industry Standard 3.5-inch 26.1 mm Height Form Factor
  • Conventional Magnetic Recording (CMR) 16TB for broad compatibility
  • Industry-leading 9-disk helium-sealed design for superior storage density
  • 7,200 rpm Performance
  • 550 Total TB Transferred per Year Workload Rating
  • 512e or 4Kn Advanced Format Sector Technology; (512e Model) Includes  Toshiba Persistent Write Cache Technology for Data-Loss Protection in Sudden Power-Loss Events


  • Cloud-scale Sever and Storage Infrastructure
  • Software-defined data center infrastructure
  • File- and Object-based storage infrastructure
  • Tiered Storage Infrastructure
  • Workloads and Use-Cases that Benefit from High Capacity per Spindle
  • Capacity-Optimized Cloud-scale and Rack-Scale Storage Systems
  • Compliance Data Life-Cycle Management
  • Data Center Data-Protection and Data Back-up Infrastructure







Item                                                             MG08ACA16T                                               MG08SCA16T

Interface SATA-3.3 SAS-3
Formatted Capacity 16 TB



Interface Speed [4] 6.0 Gbit/s, 3.0 Gbit/s, 1.5 Gbit/s 12.0 Gbit/s, 6.0 Gbit/s, 3.0 Gbit/s, 1.5 Gbit/s
Rotation Speed 7200 rpm
Buffer Size 512 MiB [6]


Logical Data Block Length

MG08xxxxxxA ( fixed length )  

4096 B


4096 B / 4160 B

MG08xxxxxxE (emulation) [7]  

Host:512 B, Disk:4096 B

Host:512 B, Disk:4096 B Host:520 B, Disk:4160 B
Supply Voltage Allowable Voltage 12 V [8] ± 10 % / 5 V [8] + 10% / -7% [9]
Acoustics[10] Active Idle (Typ.) 20 dB




Item                                                                                                 Specification
Ambient temperature Operating 5 °C to 55 °C (No condensation)
Non-Operating [11] [12] -40 °C to 70 °C (No condensation)
Relative Humidity Operating 5 % to 90 % R.H. (No condensation)
Non-Operating 5 % to 95 % R.H. (No condensation)


Operating – 305 m to 3048 m (No condensation)
Non-Operating [11] [12] – 305 m to 12192 m (No condensation)

Shock [13]

Operating 686 m/s2 { 70 G } ( 2 ms duration )
Non-Operating 2450 m/s2 { 250 G } ( 2 ms duration )

Vibration [13]


Operating [14]

7.35 m/s2 { 0.75 G } ( 5 to 300 Hz )

2.45 m/s2 { 0.25 G } ( 300 to 500 Hz )

Non-Operating [15] 29.4 m/s2 { 3.0 G } ( 5 to 500 Hz )



Item                                                                                                 Specification
MTTF [16] 2500000 hours
Non-recoverable Error Rate 10 error per 1016 bits read
Load / Unload 600000 times
Availability 24 hours/day, 7 days/week
Rated Annual Workload [4]

(Total TB Transferred per Year, R/W)

550 TB per year




Item                                                                                                 Specification
Width (Max) 101.85 mm
Height (Max) 26.1 mm
Length (Max) 147.0 mm
Weight (Max.(Typ.)) 720 g (694 g)
  • Source: Toshiba Electronic Devices & Storage Corporation, as of January, 2019 for the 3.5-inch, 26.1mm
  • Definition of capacity: Toshiba defines 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 1TB = 240 = 1,099,511,627,776 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
  • “3.5-inch” mean the form factor of HDDs. They do not indicate drive’s physical
  • Read and write speed may vary depending on the host device, read and write conditions, and file
  • Workload is defined as the amount of data written, read or verified by commands from host
  • A mebibyte (MiB) means 220, or 1,048,576
  • Read–modify-write is
  • Input voltages are specified at the HDD connector side, during HDD ready
  • Make sure the value is not less than -0.3V DC (less than -0.6V, 0.1ms) when turning on or off the
  • The measuring method is based on ISO
  • Non-operating condition (except storage condition) assumes short term
  • The range of altitude is 3,048 m or Up to 55°C at 7,620m. Up to 40°C at 12,192m.
  • Vibration applied to the HDD is measured at near the mounting screw hole on the frame as much as
  • At random seek write/read and default on retry setting with log sweep
  • At power-off state after installation
  • MTTF (Mean Time to Failure) is not a guarantee or estimate of product life; it is a statistical value related to mean failure rates for a large number of products which may not accurately reflect actual operation. Actual operating life of the product may be different from the


  • Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant information of this document and the instructions for the application that Product will be used with or