Companies Sign Memorandum of Understanding to Establish HBF Memory Technology Specification

Sandisk Corporation (NASDAQ: SNDK) today announced it has signed a landmark Memorandum of Understanding (MOU) with SK hynix to work together to establish the specification for High Bandwidth Flash – a new technology designed to deliver breakthrough memory capacity and performance for the next generation of AI inferences. Through this collaboration, the companies expect to standardize the specification, define technology requirements and explore the creation of a technology ecosystem for High Bandwidth Flash.

“By collaborating with SK hynix to define the High Bandwidth Flash specification, we are addressing the critical need for scalable memory in the AI industry,” said Alper Ilkbahar, Executive Vice President and Chief Technology Officer, and HBF™ Technical Advisory Board member at Sandisk. “This collaboration accelerates innovation and will offer the industry new tools to handle the exponential data demands of tomorrow’s applications. Our work will help provide an effective solution to meet the world’s technology needs and exceeds expectations of our respective customers.”

“There is an ever-increasing need for solutions that address the challenges of next-generation computing,” said Dr. Hyun Ahn, President and Chief Development Officer (CDO) at SK hynix Inc. “Through our work with Sandisk to standardize the High Bandwidth Flash specification, we are actively contributing to the commercialization of this innovative technology, which we believe is key to unlocking the full potential of AI and next-generation data workloads.”

As AI models grow larger and more complex, inference workloads demand both massive bandwidth and significantly greater memory capacity. Designed for AI inference workloads in large data centers, small enterprises and edge applications, HBF is targeted to offer comparable bandwidth to High Bandwidth Memory (HBM) while delivering up to 8-16x the capacity of HBM at a similar cost.

Enabled by Sandisk’s advanced BiCS technology and proprietary CBA wafer bonding and developed over the past year with input from leading AI industry players, Sandisk’s HBF technology was awarded “Best of Show, Most Innovative Technology” at FMS: the Future of Memory and Storage 2025. Sandisk targets to deliver first samples of its HBF memory in the second half of calendar 2026 and expects samples of the first AI-inference devices with HBF to be available in early 2027.

Sandisk recently announced the formation of a Technical Advisory Board to guide the development and strategy of its groundbreaking HBF memory technology. The board, consisting of industry experts and senior technical leaders from both within and outside of Sandisk, will provide strategic guidance, technical insight, market perspective, and shape a standards-driven ecosystem.

Today at 11:40 am Pacific time, Sandisk will deliver a keynote address at FMS 2025 in Santa Clara, Calif., including the latest HBF-related updates. The company will also showcase its innovative storage solutions at FMS Booth #607.

About Sandisk

Sandisk (Nasdaq: SNDK) delivers innovative Flash solutions and advanced memory technologies that meet people and businesses at the intersection of their aspirations and the moment, enabling them to keep moving and pushing possibility forward. Follow Sandisk on Instagram, Facebook, X, LinkedIn, and YouTube. Join TeamSandisk on Instagram.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of federal securities laws, including statements regarding expectations for the availability, impact, use-cases, growth and performance of High Bandwidth Flash and the ramifications and impact of the announced collaboration between Sandisk Corporation and SK hynix Inc. These forward-looking statements are based on management’s current expectations and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied in the forward-looking statements.

Key risks and uncertainties that could cause actual results to differ materially from those expressed or implied in the forward-looking statements include: adverse changes in global or regional economic conditions, including the impact of evolving trade policies, tariff regimes and international conflicts; volatility in demand for the company’s products; pricing trends and fluctuations in average selling prices inflation; the impact of business and market conditions; the impact of competitive products and pricing; the company’s development and introduction of products based on new technologies and management of technology transitions; risks associated with restructurings, acquisitions, divestitures, cost saving measures, joint ventures and the company’s reliance on strategic relationships; risks related to product defects; difficulties or delays in manufacturing or other supply chain disruptions; hiring and retention of key employees; the company’s level of debt and other financial obligations; changes to the company’s relationships with key customers or customer consolidation; compromise, damage or interruption from cybersecurity incidents or other data system security risks; actions by competitors; risks associated with compliance with changing legal and regulatory requirements and the outcome of legal proceedings; the company’s ability to achieve some or all of the expected benefits of the separation from Western Digital Corporation; and other risks and uncertainties set forth Sandisk Corporation’s S-1/A Registration Statement filed with the SEC on June 4, 2025, which is available on the SEC’s website at www.sec.gov. You should not place undue reliance on these forward-looking statements, which speak only as of the date hereof, and Sandisk undertakes no obligation to update or revise these forward-looking statements to reflect new information or events, except as required by law.

Sandisk, the Sandisk logo and HBF are registered trademarks or trademarks of Sandisk Corporation or its affiliates in the U.S. and/or other countries. All other marks are the property of their respective owners. Product specifications subject to change without notice.

© 2025 Sandisk Corporation or its affiliates. All rights reserved.

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