High Bandwidth FlashWiki / public index
31 indexed sourcesReviewed 16 Aug 2026
Index

Field overview · reviewed 16 August 2026

High Bandwidth Flash

High Bandwidth Flash (HBF) is an emerging class of high-capacity NAND memory designed to sit closer to AI compute than conventional storage. This wiki indexes the public standards, research, industry activity, and reporting needed to evaluate it.

Scope note: standards-track HBF is kept distinct from research proposals and adjacent high-bandwidth SSD or NAND systems.

Field status / 01

Current public record

A concise view of what can be traced to a public source. Values are announcements, not independent device measurements.

FieldCurrent public recordStatusSource
Working definitionA capacity-first flash memory tier placed close to AI computePublic framingRecord ↗
Package conceptStacked NAND dies above a logic base dieAnnouncedRecord ↗
Host-facing linkUCIeAnnouncedRecord ↗
Stack options8-high and 16-high; up to 512 GB per stackAnnouncedRecord ↗
Bandwidth gradesApproximately 0.4–3.0 TB/sAnnouncedRecord ↗
Public maturitySpecification announced; independent silicon data not locatedOpenRecord ↗

Confirmed publicly

  • Sandisk and SK hynix are co-developing an OCP specification.
  • UCIe is named as the host-facing interface.
  • Three bandwidth grades and two stack heights are announced.

Still unresolved publicly

  • A stable, openly retrievable specification package.
  • Measured latency, endurance, power, and silicon bandwidth.
  • Product names, pricing, availability, and software policy.

Catalog updates / 02

Recently indexed

View all 31 records ↗