COMPANIES · CHIP MFG & PACKAGING

WD (Western Digital)

Western Digital, which now brands itself WD, makes hard disk drives, mainly high-capacity drives for cloud and enterprise data centers. It spun off its flash-memory business as Sandisk in February 2025 and is now focused on hard drives and storage platforms.

EnablerChip mfg & packaging
What it does

Western Digital, which now brands itself WD, makes hard disk drives, mainly high-capacity drives for cloud and enterprise data centers. It spun off its flash-memory business as Sandisk in February 2025 and is now focused on hard drives and storage platforms.

Why it matters

It describes itself as building storage infrastructure for the AI-driven data economy and names hyperscalers and cloud service providers as its key customers; AI data centers need large pools of low-cost bulk storage for training data, checkpoints and generated content. It does not make chips used directly in AI computation.

How it makes money

Hyperscalers, cloud service providers and enterprises pay it for hard drives and storage platforms.

Geography

United States (San Jose, California)

AI stack position

Chip manufacturing, memory and packaging. The foundries, memory makers, and packaging and testing businesses that physically manufacture AI chips. This is where a chip design actually becomes a real, physical piece of silicon.

Competitors

Connections (4)

Every connection below is tied to a readable source, date, classification and statement of its limits. A company source establishes what that company stated; it does not necessarily provide independent confirmation.

Current relationships (1)

JCET bought 80% of a Shanghai flash assembly plant from WD (Western Digital)
Buys fromCurrent
The South China Morning Post reported that JCET completed its US$624 million purchase of an 80% stake in SanDisk Semiconductor (Shanghai), a Western Digital subsidiary, in September 2024.

Source: 2024-10-03 · reviewed 2026-09-26

Evidence: Secondary reporting (unconfirmed by primary parties) · Completed transaction (September 2024)

Limits: Covers one plant, not Western Digital itself; Western Digital's flash business was later separated into Sandisk, and the report does not establish plant output or profitability.

China chip-packaging giant JCET takes over Shanghai plant of US flash memory maker SanDisk ↗

Dated or announced (2)

WD (Western Digital) co-develops an AI storage switch with Foxconn unit Ingrasys Hon Hai (Foxconn)
Co-develops withDated / announced
Western Digital said it and Ingrasys, a subsidiary of Foxconn Technology Group, will develop a top-of-rack switch with embedded storage for AI workflows, with Ingrasys manufacturing it and availability targeted for 2027.

Source: 2025-05-14 · reviewed 2026-09-26

Evidence: Primary-source statement · Announced; not confirmed operating

Limits: Announcement of a development collaboration with a Foxconn subsidiary; does not establish that the product has shipped, volumes, or revenue.

Western Digital and Ingrasys Establish Long-term Collaboration to Deliver High-Performance, Fabric-Attached Disaggregated Storage for AI Workflows ↗
WD (Western Digital) plans an AI storage switch built on NVIDIA Spectrum-4 with NVIDIA
Uses technology fromDated / announced
Western Digital said the planned top-of-rack storage switch developed with Ingrasys will be powered by the NVIDIA Spectrum-4 switch ASIC, and the release carried a quote from an NVIDIA executive.

Source: 2025-05-14 · reviewed 2026-09-26

Evidence: Primary-source statement · Announced; not confirmed operating

Limits: Plan for a future product; does not establish chip purchase volumes, shipment, or any broader commercial agreement with NVIDIA.

Western Digital and Ingrasys Establish Long-term Collaboration to Deliver High-Performance, Fabric-Attached Disaggregated Storage for AI Workflows ↗

Comparisons (1)

Seagate competes in high-capacity hard drives with WD (Western Digital)
Competes withComparison only
Seagate and WD both sell high-capacity hard drives to cloud data centers, and both showed such drives at the 2026 AI Infra Summit.

Source: 2026-09-20 · reviewed 2026-09-26

Evidence: Analytical comparison · Product/market overlap

Limits: Market overlap only; does not establish market shares, pricing, or which customers each company wins.

WD And Seagate Showed High Capacity Storage At The AI Infra Summit (Forbes) ↗

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Inclusion in this database is not an endorsement of a company or its securities. Nothing here is a recommendation to buy or sell anything, and none of it is individualized investment advice. See the disclosures. Data: AI Map v3.24, released .