Toshiba Set to Launch Groundbreaking 40TB Hard Drives by 2027
KAWASAKI, Japan, October 14, 2025 — Toshiba Electronic Devices & Storage Corporation has reached a significant milestone in the storage industry by successfully verifying its 12-disk stacking technology for high-capacity hard disk drives (HDDs). Combining this innovative technology with Microwave-Assisted Magnetic Recording (MAMR), Toshiba plans to roll out 40TB-class 3.5-inch HDDs aimed at data centers in 2027.
This new stacking technology utilizes advanced designs that Toshiba has developed over the years. Notably, it expands the traditional 10-disk setup by adding two more disks. Key improvements include specialized components within the stack and the switch from aluminum to a more durable glass substrate, allowing for thinner designs without sacrificing reliability or performance.
As demand for data storage escalates—driven by the rise of cloud services, streaming platforms, and advancements in AI—Toshiba aims to meet these challenges head-on. “Our 12-disk HDD platform is designed to offer the scalability and reliability required for the increasing data generation driven by AI and data centers,” stated Raghu Gururangan, Vice President of Engineering & Product Marketing at Toshiba America Electronic Components.
Furthermore, Toshiba is exploring the application of this 12-disk technology in conjunction with Heat Assisted Magnetic Recording (HAMR) to create high-capacity HDD solutions while keeping costs low for customers. John Chen, Vice President at TRENDFOCUS, commented on Toshiba’s tireless efforts to develop HDDs with higher platter counts, positioning the company as a leader in competitive high-capacity offerings.
Toshiba will showcase its 12-disk stacking technology at the IDEMA Symposium on October 17, 2025, in Kawasaki, Japan. For those interested in learning more about Toshiba’s HDD products, further details will be available at the event.
