Kioxia Develops Industry’s First 2TB microSDXC Memory Card Working Prototypes

  • September 28, 2022
  • Kioxia Corporation

Tokyo – Kioxia Corporation, a world leader in memory solutions, today announced the industry's first[1] 2 terabyte (TB) microSDXC memory card working prototypes. Using its innovative BiCS FLASH™ 3D flash memory and an in-house designed controller, basic functions of the KIOXIA 2TB microSDXC UHS-I memory card working prototypes were confirmed in the microSDXC standard’s maximum density.

As the data recording capacity of smartphones, action cameras, and portable game consoles continues to increase, the need for ultra-high capacity SD memory cards to store all of this data has never been higher. The SD Association’s SDXC specification has supported memory cards up to 2TB for more than a decade – but 2TB cards have not been successfully manufactured until now.

Designed using the company’s proprietary manufacturing technology, the KIOXIA 2TB card working prototypes are built by stacking sixteen 1 terabit dies of 3D flash memory and achieve a maximum thickness of 0.8 mm at the die mounting area – making them well-suited to high-capacity data recording applications.

Mass production of the KIOXIA 2TB microSDXC memory cards is scheduled to begin in 2023.

Industry’s First 2TB microSDXC Memory Card Working Prototype


[1] As of September 28, 2022. Kioxia survey.

  • For Kioxia products: Product density is based on the density of memory chip(s) within the product; not the amount of memory capacity available to by the end user. Consumer-usable capacity will be less due to factors such as overhead data areas, formatting, bad blocks, and other constraints, and may also vary based on the host device and application.
  • SD logo, SDXC logo and microSDXC logo are trademarks of SD-3C LLC.
  • All company names, product names and service names may be trademarks of their respective companies.

Information in this document, including product prices and specifications, content of services and contact information, is correct on the date of the announcement but is subject to change without prior notice.