Toshiba has declared that it has emerged as a frontrunner in the storage sector, having accomplished the verification of 12 - disk stacking technology. This cutting - edge technology will be integrated with Toshiba's proprietary microwave - assisted magnetic recording technology. The company has ambitious plans to introduce a 40TB - class 3.5 - inch hard drive tailored for the data center market in 2027.

Leveraging the existing framework of 10 - disk 3.5 - inch nearline hard drives, Toshiba has successfully managed to stack 12 disks in a stable manner. This achievement is the result of innovative structural design and highly precise manufacturing processes. Moreover, the company has developed specialized stacking components. It has upgraded the traditional aluminum substrate media to glass substrates, which are not only stronger but also thinner. This upgrade significantly enhances mechanical stability, planar accuracy, and storage density.

In addition, Toshiba is actively investigating the potential of combining 12 - disk stacking technology with next - generation heat - assisted magnetic recording technology. The aim is to keep pace with the ever - growing demand for data storage and assist customers in optimizing their total cost of ownership.

Toshiba is scheduled to give a comprehensive presentation on this groundbreaking technology at the IDEMA Symposium, which will be held in Kawasaki, Japan, on October 17, 2025.