AL14SX Series

The 12.0 Gbit/s SAS interface AL14SX Series Enterprise Performance HDDs are Toshiba’s highest-performing 15,000rpm model line. Engineered for mission critical IT operations, an array of models are available with 512 native (512n), or emulated 512 (512e) or 4K native sector length technologies for optimum application and operating system compatibility. Toshiba’s Persistent Write Cache technology protects against data loss in the event of unexpected power loss, and helps maintain optimum data reliability for high-duty cycle Mission Critical environments.

Product Specification

Form Factor 2.5-inch
Interface SAS 12.0 Gbit/s
Buffer Size 128 MiB
Rotation Speed 15000 rpm

Data Transfer Speed
( Sustained )

4Kn or 512e 290 MiB/s
512n 259 MiB/s
Power Consumption
( Idle - A ) ( Typ. )
5.6 W
MTTF 2 000 000 h
Weight ( Max ) 230 g
AL14SX Series

Key Features

  • 900, 600 and 300GB Capacity Models
  • Space Efficient, Power Saving 2.5-inch Form Factor
  • 12.0 Gbit/s SAS Interface for Better Performance
  • 15,000 rpm Performance
  • Industry Leading Low Latency (2.0ms)
  • 24/7 Mission Critical Workload Performance and Data Reliability
  • 512n sector length support in all capacities for optimum legacy application compatibility
  • Toshiba Persistent Write Cache Technology
  • Sanitize Instant Erase (SIE) Option


  • Tier 1 Mission-Critical Servers and RAID Storage
  • Servers hosting transaction-based applications
  • Rack-Optimized Data Centers
  • Tiered Mission-Critical storage and Hybrid Arrays
  • High-performance computing
  • Mission-Critical Server Boot and Logging


Capacity Format Type Model Number
900 GB 4Kn Standard AL14SXB90EA
900 GB 512e Standard AL14SXB90EE
900 GB 512n Standard AL14SXB90EN
900 GB 512n SIE AL14SXB90ENY
600 GB 4Kn Standard AL14SXB60EA
600 GB 512e Standard AL14SXB60EE
600 GB 512n Standard AL14SXB60EN
600 GB 512n SIE AL14SXB60ENY
300 GB 4Kn Standard AL14SXB30EA
300 GB 512e Standard AL14SXB30EE
300 GB 512n Standard AL14SXB30EN
300 GB 512n SIE AL14SXB30ENY
  • Product image may represent a design model.
  • Definition of capacity: Toshiba defines a megabyte (MB) as 1,000,000 bytes, 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.
  • A kibibyte (KiB) means 210, or 1,024 bytes, a mebibyte (MiB) means 220, or 1,048,576 bytes, and a gibibyte (GiB) means 230, or 1,073,741,824 bytes.
  • 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 MTTF.
  • Read and write speed may vary depending on the host device, read and write conditions, and file size.
  • SIE: Sanitize Instant Erase. SIE is a function to invalidate the data recorded on the magnetic disks at a blink.
  • "2.5-inch" and "3.5-inch" mean the form factor of HDDs or SSDs. They do not indicate drive's physical size.


Name Date


Contact us

Contact us

Frequently Asked Questions



Where to Buy


  • Instructions for Dispose
    Please dispose in accordance with local rules.
  • Instructions for erase of the data on the HDDs in case of dispose or transfer
    HDDs incorporated in personal computer or several home appliance may record personal data and/or other important data as signal. In order to avoid disclosing such data, it is important to erase it when you dispose or transfer the HDDs.
A new window will open