Toshiba First in Industry to Verify 12-Disk Stacking Technology for Hard Drives
- Targeting launch of next-generation 40TB-class HDDs in 2027 -
TAIPEI, Oct. 14, 2025 /PRNewswire/ -- Toshiba Electronic Components Taiwan Corporation (Toshiba) is first[1] in the storage industry to verify 12-disk stacking technology for high-capacity hard disk drives (HDDs). By combining this achievement with Microwave-Assisted Magnetic Recording (MAMR) technology, the company aims to introduce 40TB[2]-class 3.5-inch[3] HDDs for data centers to the market in 2027.
This revolutionary stacking technology leverages advanced design and analysis technologies Toshiba has cultivated in developing thin, compact products, and adds two disks to the standard 10-disk, 3.5-inch disk track that the company uses in its nearline HDDs. Key advances include the development of new dedicated parts in the stack, and replacement of the current aluminum substrate medium with a glass substrate that offers greater durability and allows thinner designs. These advances deliver improved mechanical stability and in-plane accuracy, higher density and greater reliability.
Data generation and storage continues to explode as cloud services expand, streaming video services gain in popularity, and generative AI and data science enjoy rapid growth. Recognizing the need to raise storage capacities, Toshiba is also investigating the use of 12-disk stacking technology with next-generation Heat Assisted Magnetic Recording (HAMR). The goal is higher-capacity HDD solutions that keep up with ever-growing storage demands from data centers while realizing a lower total cost of ownership (TCO) for customers.
Toshiba's new 12-disk stacking technology will be featured at the IDEMA Symposium on October 17, 2025 in Kawasaki, Japan. For more information, please visit the IDEMA website:
https://www.idema.gr.jp/forumseminar/Symposium/2025/OctoberSymposium2025.pdf
For more information on Toshiba's full line of HDD storage products, please visit:
https://toshiba.semicon-storage.com/ap-en/product/storage-products.html
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[1] Toshiba research, as of October 14, 2025
[2] Definition of capacity: One terabyte (TB) = one trillion bytes, but storage capacity actually available may vary, depending on operating environment and formatting. Available storage capacity (including examples of various media files) will vary based on file size, formatting, settings, software and operating system and/or pre-installed software applications, or media content. Actual formatted capacity may vary.
[3] "3.5-inch" mean the form factor of HDDs. They do not indicate drive's physical size.
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* Information in this document, including product prices and specifications, content of services and contact information, is current and believed to be accurate as of the date of the announcement, but is subject to change without prior notice.
About Toshiba Electronic Components Taiwan Corporation (TET)
Toshiba Electronic Components Taiwan Corporation is responsible for the sales and marketing promotion and support of Toshiba hard disk drives and External HDDs in Taiwan, China and Southeast Asian countries. TET is the best partner to Enterprise server, storage and notebook computers, and its mission is to offer the best service and products embodying the highest quality and most leading-edge technology. For more information:
http://toshiba.semicon-storage.com/ap-en/product/storage-products.html
About Toshiba Electronics Asia (Singapore)
Toshiba Electronics Asia (Singapore) ("TEA") is under Toshiba Electronic Devices & Storage Corporation, a subsidiary of Toshiba Corporation. TEA was founded in 1990, and is responsible for the sales, marketing and services for Toshiba's storage solutions in Asia Pacific, which includes the Canvio Portable External Hard Drives and Internal Hard Drives. TEA is the best partner to consumers and enterprises, and its mission is to offer the best services and products that embody the highest quality and cutting-edge technology. Visit us at:
https://toshiba.semicon-storage.com/ap-en/storage.html
SOURCE Toshiba Electronic Components Taiwan Corporation
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