KIOXIA LD4 Series Enables High-Density Flash Storage in 1U Server Environments

TOKYO--(BUSINESS WIRE)--Oct. 09, 2026

Kioxia Corporation today announced its first E1.L form factor SSD built with BiCS FLASH™ generation 8 QLC flash memory. Amid the ever-growing demand for data—including data for AI—hyperscale data centers are increasingly adopting high-density designs to achieve greater storage capacity within limited server space. The KIOXIA LD4 Series is designed for high-density 1U servers and read-intensive storage applications. KIOXIA LD4 Series drives are currently sampling^*1 to select customers and will be showcased at the 2026 OCP Global Summit, taking place from October 12 to 15 in San Jose, California.

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KIOXIA LD4 Series Data Center SSD

Key features of the KIOXIA LD4 Series include:

• PCIe^® 5.0 (Gen 4 x4)^*2, NVMe™ 2.0e specification compliant
• Support for Open Compute Project (OCP) Datacenter NVMe™ SSD Specification v2.6
• Single-port design for hyperscale and data center-class servers
• Available in 15.36 TB, 30.72 TB capacities, with validated architecture enabling capacities up to 122.88 TB
• Built with BiCS FLASH™ generation 8 QLC flash memory

Notes:

^*1 These samples are for functional check purposes only and the specifications of the samples may differ in mass production.

^*2 Compliant with the PCIe^Ⓡ 5.0 specification, with speed up to 16 gigatransfers per second (GT/s) x4

*Read and write speed may vary depending on various factors such as host devices, software (drivers, OS etc.), and read/write conditions.

*Definition of capacity: Kioxia Corporation defines a terabyte (TB) as 1,000,000,000,000 bytes. A computer operating system, however, reports storage capacity using powers of 2 for the definition of 1TB = 2^40 bytes = 1,099,511,627,776 bytes and therefore shows less storage capacity. Available storage capacity (including examples of various media files) will vary based on file size, formatting, settings, software and operating system, and/or pre-installed software applications, or media content. Actual formatted capacity may vary.

NVMe is a registered or unregistered mark of NVM Express, Inc. in the United States and other countries.

OCP and OPEN COMPUTE PROJECT marks are owned by and used with the permission of the Open Compute Project Foundation.

PCI Express and PCIe are registered trademarks of PCI-SIG.

Other company names, product names and service names may be trademarks of third-party companies.

About Kioxia

Kioxia is a world leader in memory solutions, dedicated to the development, production and sale of flash memory and solid-state drives (SSDs). In April 2017, its predecessor Toshiba Memory was spun off from Toshiba Corporation, the company that invented NAND flash memory in 1987. Kioxia is committed to uplifting the world with “memory” by offering products, services and systems that create choice for customers and memory-based value for society. Kioxia's innovative 3D flash memory technology, BiCS FLASH™, is shaping the future of storage in high-density applications, including advanced smartphones, PCs, automotive systems, data centers and generative AI systems.

*Information in this document, including product prices and specifications, content of services and contact information, is correct on the date of the announcement but is subject to change without prior notice.

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Contact:

Media Inquiries:
Kioxia Corporation
Promotion Management Division
Satoshi Shindo
Tel: +81-3-6478-2404