Skip to research
stock3dby Fynca
Explore in 3D

COMPANY RESEARCH / 285A.T

Kioxia Holdings

E1.S and AI-optimized data-center SSDs

Published by FyncaResearch checked How we research

Where it fits in an AI server rack

Announced the NX1 Series on July 29, 2026: E1.S PCIe 5.0 NVMe data-center SSDs (BiCS FLASH gen-8 TLC) for GPU-enabled servers and hyperscale data centers, with a 9.5 mm version that supports cold-plate direct liquid cooling. Its GP Series Super High IOPS SSD, built on XL-FLASH, supports NVIDIA’s Storage-Next initiative for GPU-initiated AI workloads, with evaluation samples due by end-2026 (Mar 16, 2026).

What the evidence establishes

AI-rack evidence

Positioning: Kioxia’s own releases present NX1 E1.S drives for GPU servers and the GP Series for NVIDIA’s Storage-Next initiative; no customer or rack program is named.

An explicit AI-server or AI-rack product, design-in, supply role, program, reference design or partnership, such as a part named for rack-scale AI systems or a product sold for AI data centers. For a rack builder, it means the company’s own AI servers or racks. This does not establish revenue, market share, volumes or future sourcing.

Component roleE1.S and AI-optimized data-center SSDs
EvidencePositioning: Kioxia’s own releases present NX1 E1.S drives for GPU servers and the GP Series for NVIDIA’s Storage-Next initiative; no customer or rack program is named.
How we knowPositioning A dedicated AI-server or AI-data-center product or reference design, with no named customer. Marketed for AI racks; not a disclosed design win.
Primary sourceKioxia Holdings — supporting disclosure
Company or official disclosure; vendor claims are attributed to their source.
Checked. This is the research review date, not the source publication or quote time.

Keep in perspective

No named AI-rack program, customer or NVIDIA qualification was found for a Kioxia E1.S drive; the GP Series is pre-sample. Kioxia and Sandisk share NAND fabs through their joint venture, so flash capacity is not unique to either brand.

Diversified business exposure. This describes the breadth or role of the business; it is not an investment rating. An AI-server product, design-in or partnership does not by itself establish material AI-rack revenue, market share, or future returns.

Connections to the assembly

These links explain the technology relationship. The model is illustrative and does not represent an actual manufacturer’s bill of materials.

E1.S NVMe SSDs

Flash drives in the slim EDSFF E1.S form factor: NAND flash, a controller and DRAM that hold the operating system, checkpoints and cached data. Reference trays carry four; some vendors fit up to eight in internal bays.

Scope of the company links: E1.S NVMe drives sit in each compute tray (NVIDIA lists four per GB200 tray). The rack-specific qualifications found are Sandisk’s DC SN861 E1.S (certified for GB200 NVL72 as Western Digital, Oct 14, 2024) and Micron’s 9550 and 7450 (on NVIDIA’s GB200 NVL72 recommended vendor list, per Micron). Kioxia (NX1 E1.S for GPU servers) and Samsung (PM1763 for AI infrastructure) position drives for AI servers, SK hynix reports expanding eSSD sales for AI servers, and its subsidiary Solidigm, which is not separately listed, shows a cold-plate-cooled SSD. Silicon Motion, Phison and Marvell sell SSD controllers with no named rack program. A vendor list shows eligibility, not volumes.

Related research

Companies with overlapping sector exposure. Their products and evidence may differ; this is not a list of equivalent investments.

Suggest a correction · Research and market-data disclosures