SK hynix Unveils First HBF Standard Specifications with Sandisk

SK hynix Inc. announced in collaboration with Sandisk that it has unveiled the first standard specifications for High Bandwidth Flash (HBF), a next-generation storage technology.

This milestone comes about six months after launching the consortium in February this year, following the initial standardization partnership with Sandisk in August 2025. Capacity specifications cover up to 512GB based on two stack configurations (8-high and 16-high NAND dies). Bandwidth is categorized into three grades (Grade1~3), delivering scalable performance from approximately 0.4TB/s to 3.0TB/s.