KIOXIA CD9P Series PCIe 5.0 SSDs Feature Advanced CBA Architecture and TLC Flash, Delivering Breakthrough Performance, Efficiency, and Capacity
SAN JOSE, Calif.–(BUSINESS WIRE)–KIOXIA America, Inc. today announced the development and prototype demonstration of its new KIOXIA CD9P Series PCIe® 5.0 NVMe™ SSDs. These next-generation drives are the latest SSDs built with KIOXIA’s 8th generation BiCS FLASH™ TLC–based 3D flash memory. KIOXIA BiCS FLASH features CBA (CMOS directly Bonded to Array) technology, a breakthrough architecture that significantly boosts power efficiency, performance, and storage density, while doubling the capacity available1 per SSD compared with the previous generation model.
As GPU-accelerated AI servers drive up the demands on storage infrastructure, maintaining high throughput, low latency, and consistent performance is critical – including keeping valuable GPUs highly utilized. The KIOXIA CD9P Series is purpose-built for these next-generation environments, delivering the speed and responsiveness required by AI, machine learning, and high-performance computing (HPC) workloads to ensure GPUs stay fed with data and operating at maximum efficiency.
The CD9P Series leverages KIOXIA’s most advanced 3D flash memory to date, featuring a CBA-based architecture that reduces heat generation, enhances thermal management, and delivers greater overall value through improved performance, power metrics and total cost of ownership. With an increased focus on power and performance efficiency (performance per watt), the CD9P Series 15.36 TB model delivers approximately 60% and 45% improvements in sequential read and write speeds per watt, respectively, compared to the previous generation SSD. It also achieves gains of approximately 55% and 100% in random read and write performance per watt, measured in thousands of IOPS (KIOPS), respectively.
KIOXIA CD9P Series drives deliver 4-corner performance improvements of up to approximately 125% in random write, 30% in random read, 20% in sequential read, and 25% in sequential write speeds compared to the previous generation.
KIOXIA CD9P Series SSD highlights include:
- PCIe 5.0, NVMe 2.0, NVMe-MI™ 1.2c compliant
- Open Compute Project® Datacenter NVMe SSD specification v2.5 support (not all requirements)
- Form factors: 2.5-inch 15 mm thickness, EDSFF E3.S
- Read-intensive (1 DWPD) and mixed-use (3 DWPD) endurances
- Sequential performance (128 kibibytes (KiB)@QD32) – 14.8 gigabytes per second (GB/s) read and 7 GB/s write
- Random performance (4KiB@QD512) – 2,600 KIOPS read and 750 KIOPS (4KiB@QD32) write
- 2.5-inch capacities up to 61.44 terabytes (TB) and E3.S capacities up to 30.72 TB
- CNSA 2.0 signing algorithm support2 (Prepared for the threat posed by Quantum Computers)
“The CD9P Series extends our NAND flash leadership with a solution engineered for today’s most demanding AI and accelerated computing environments,” said Neville Ichhaporia, senior vice president and general manager of the SSD business unit at KIOXIA America, Inc. “By combining our CBA-based architecture with PCIe 5.0 performance, the CD9P Series helps keep GPUs consistently fed with data – significantly improving utilization while driving greater efficiency, responsiveness, and scalability across AI-driven data center workloads.”
KIOXIA CD9P Series SSDs are now sampling to select customers and will be showcased at HPE® Discover Las Vegas 2025, taking place June 23–26.
For more information, please visit www.kioxia.com, and follow the company on X, formerly known as Twitter and LinkedIn®.
About KIOXIA America, Inc.
KIOXIA America, Inc. is the U.S.-based subsidiary of KIOXIA Corporation, a leading worldwide supplier of flash memory and solid-state drives (SSDs). From the invention of flash memory to today’s breakthrough BiCS FLASH™ 3D technology, KIOXIA continues to pioneer innovative memory, SSD and software solutions that enrich people’s lives and expand society’s horizons. The company’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. For more information, please visit KIOXIA.com.
© 2025 KIOXIA America, Inc. All rights reserved. Information in this press release, including product pricing and specifications, content of services, and contact information is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable KIOXIA product specifications.
Notes:
1: Compared to the previous generation, 15.36 TB model.
2: CD9P supports Leighton-Micali Signature (LMS) algorithm acknowledged by Commercial National Security Algorithm Suite 2.0 (CNSA) as a digital signature algorithm to prevent firmware tampering in preparation for threats to conventional cryptographic algorithms posed by quantum computers. Advanced Encryption Standard (AES-256) with a key length of 256 bits, which is the data encryption algorithm used in CD9P, is also acknowledged by CNSA 2.0.
Read and write speed may vary depending on various factors such as host devices, software (drivers, OS etc.), and read/write conditions.
Performance based on KIOXIA testing compared to the previous generation, 15.36 TB model. Performance is preliminary and subject to change without notice.
Definition of capacity: KIOXIA Corporation defines a kilobyte (KB) as 1,000 bytes, a megabyte (MB) as 1,000,000 bytes, a gigabyte (GB) as 1,000,000,000 bytes, a terabyte (TB) as 1,000,000,000,000 bytes, and a kibibyte (KiB) is 1,024 bytes. A computer operating system, however, reports storage capacity using powers of 2 for the definition of 1GB = 2^30 bytes = 1,073,741,824 bytes and 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.
IOPS: Input Output Per Second (or the number of I/O operations per second)
DWPD: Drive Write(s) Per Day. One full drive write per day means the drive can be written and re-written to full capacity once a day every day under the specified workload for the specified lifetime. Actual results may vary due to system configuration, usage and other factors.
2.5-inch indicates the form factor of the SSD and not its physical size.
NVMe and NVMe-MI are registered or unregistered trademarks of NVM Express, Inc. in the United States and other countries.
PCIe is a registered trademark of PCI-SIG.
The OCP and OPEN COMPUTE PROJECT marks are owned by and used with permission of the Open Compute Project Foundation.
HPE is a registered trademark of Hewlett Packard Enterprise Company and/or its affiliates.
LinkedIn is a trademark of LinkedIn Corporation and its affiliates in the United States and/or other countries.
Other company names, product names and service names may be trademarks of third-party companies.
Contacts
Media Contact:
Dena Jacobson
Lages & Associates
Tel: (949) 453-8080
dena@lages.com
Company Contact:
Mia Cool
KIOXIA America, Inc.
Tel: (408) 526-3087
mia.cool@kioxia.com
