GoKawiilSeagate, Toshiba reportedly vie to buy TDK's HDD magnetic head unit
Bloomberg reports Seagate Technology and Toshiba are competing to acquire TDK's hard disk drive magnetic head business in a deal said to be worth several billion dollars. TDK is currently the only independent maker of these components and Toshiba's sole supplier, while Seagate and Western Digital build heads in-house but also buy from TDK for extra capacity. According to the report, Toshiba approached TDK about the unit in spring 2026, after which Seagate entered the bidding.
GoKawiil's interpretation of the reporting above, not reported fact.
If Seagate wins the unit, Toshiba could become reliant on a rival for a core hard-drive component, which may weaken its negotiating position and supply security, particularly as it moves toward next-generation HAMR technology that requires specialized heads. The outcome could reshape competitive dynamics across the HDD supply chain, since all three major manufacturers depend on TDK's technology to varying degrees.
- Seagate and Toshiba are reportedly competing to buy TDK's HDD magnetic head business.
- TDK is the sole magnetic head supplier for Toshiba and a backup supplier for Seagate and Western Digital.
- A Seagate acquisition could leave Toshiba dependent on a competitor for critical hard drive components.
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See Seagate Exos X20 Hard Drive on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: tomshardware.com — Anton Shilov, 2026-10-07
Published there as: “Seagate and Toshiba battle for TDK's HDD head business, a critical hard drive component”
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