SanDisk, a global flash storage leader, has introduced its UltraQLC™ platform, featuring ultra-high capacity and high performance for the AI era.

SanDisk unveiled a 256TB NVMe™ SSD based on its next-generation UltraQLC™ platform at the Flash Memory Summit (FMS) 2025 in Santa Clara, California.

The newly announced SanDisk® UltraQLC™ 256TB NVMe™ SSD is designed with a combination of BiCS8 QLC CBA NAND, a scalable multi-core controller, and advanced system optimization technologies to deliver performance and power efficiency optimized for complex workloads such as AI-based data lake construction, preprocessing, and high-speed analytics.

SanDisk's QLC direct write technology allows data to be stored directly on QLC without SLC buffering, ensuring data stability even when power is cut off.

The BiCS8 2Tb QLC die doubles storage density while maintaining die size to maximize space efficiency.

Additionally, the UltraQLC™ platform delivers up to 10% performance improvement at the same power level through Dynamic Frequency Scaling, and data retention profiles enable DR Drive stability and resilience are improved by reducing cycle times by up to 33%.

“The UltraQLC™ platform is the culmination of years of research and experience, delivering a high-performance, high-capacity storage solution that addresses the demands of large-scale AI,” said Khurram Ismail, chief product officer at SanDisk. “We will help customers process and analyze data faster, driving real-world innovation.”

The 256TB NVMe™ SSD contributes to reducing total cost of ownership (TCO) in hyperscale cloud environments with low latency, wide bandwidth, and high reliability, and is designed to be optimized for AI-centric enterprise infrastructure.

SanDisk will be keynoting its UltraQLC™ platform at FMS 2025 and showcasing a range of storage solutions, including a 256TB NVMe™ SSD, at booth #607. This product will be available in the U.2 form factor in the first half of 2026, with additional form factors to be announced later this year.