Sandisk Unveils 256 Tb Ssd For AI Workloads, Shipping In 2026
Blocks & Files, Tuesday, August 5th, 2025
The Sandisk UltraQLC SN670 drive comes in 256 TB and 128 TB capacities, and uses BiCS 218-layer 3D NAND with its CBA (CMOS directly Bonded to Array) 2 Tb die design, and a PCIe gen5 NVMe interface.
It is intended for use in AI-driven, data-intensive workloads like data ingest, preparation, and AI data lakes. It uses the same NAND as fab partner Kioxia and, we're told, beats its 245.76 TB LC9 product's capacity by more than 10 TB.
Khurram Ismail, Sandisk chief product officer, stated: 'As we move into the next phase of the AI era, flash storage is becoming a critical enabler of intelligent, high-performance workloads.'