Sandisk and SK hynix release first OCP specification for High Bandwidth Flash

Sandisk Corporation and SK hynix Inc. released the HBF (High Bandwidth Flash) technical specification through the Open Compute Project, moving a standardization effort aimed at AI inference systems into a formal technical framework.

The release comes just six months after the consortium began work in February. The specification was developed through the HBF technology workstream under OCP, with Sandisk and SK hynix serving as primary contributors.

Google and Tenstorrent joined the consortium during the standardization process and contributed to technology validation and the establishment of the standard. The specification is intended for companies and developers building AI inference systems and accelerators that need larger near-compute memory capacity and higher bandwidth to improve power and performance metrics and help reduce total cost of ownership.