KIOXIA Unveils CD9P Series PCIe 5.0 SSDs: Revolutionizing AI and HPC Storage with Advanced CBA Architecture
KIOXIA America, Inc. has announced the development and prototype demonstration of its groundbreaking KIOXIA CD9P Series PCIe® 5.0 NVMe™ SSDs. These next-generation drives are built using KIOXIA’s 8th generation BiCS FLASH™ TLC-based 3D flash memory, incorporating the innovative CBA (CMOS directly Bonded to Array) architecture. This cutting-edge design significantly enhances power efficiency, performance, and storage density while doubling the capacity available per SSD compared to the previous generation. As GPU-accelerated AI servers push the boundaries of storage infrastructure, the ability to deliver high throughput, low latency, and consistent performance is more critical than ever. The KIOXIA CD9P Series is purpose-built for these demanding environments, ensuring GPUs remain fully utilized by feeding them data at maximum speed and efficiency.
CBA Architecture: A Game-Changer for Performance and Efficiency
At the heart of the CD9P Series lies KIOXIA’s most advanced 3D flash memory, featuring the revolutionary CBA-based architecture. This technology reduces heat generation, improves thermal management, and delivers exceptional value through enhanced performance, power metrics, and total cost of ownership. With a growing emphasis on power and performance efficiency (performance per watt), the CD9P Series sets new benchmarks. For instance, the 15.36 TB model achieves approximately 60% and 45% improvements in sequential read and write speeds per watt, respectively, compared to its predecessor. Additionally, it boasts gains of approximately 55% and 100% in random read and write performance per watt, measured in thousands of IOPS (KIOPS).
The CD9P Series also delivers significant 4-corner performance improvements, including up to approximately 125% faster random write speeds, 30% higher random read speeds, 20% faster sequential read speeds, and 25% faster sequential write speeds compared to the previous generation. These advancements make the CD9P Series ideal for handling the intense demands of AI, machine learning, and high-performance computing (HPC) workloads.
Key Features of the KIOXIA CD9P Series
The KIOXIA CD9P Series SSDs are designed to meet the rigorous requirements of modern data centers. Key highlights include:
- Compliance and Standards: PCIe 5.0, NVMe 2.0, and NVMe-MI™ 1.2c compliant, with support for the Open Compute Project® Datacenter NVMe SSD specification v2.5 (not all requirements).
- Form Factors: Available in 2.5-inch (15 mm thickness) and EDSFF E3.S configurations.
- Endurance Options: Read-intensive (1 DWPD) and mixed-use (3 DWPD) models to suit diverse workload needs.
- Performance Metrics:
- Sequential performance (128 KiB@QD32): Up to 14.8 GB/s read and 7 GB/s write.
- Random performance (4 KiB@QD512): Up to 2,600 KIOPS read and 750 KIOPS (4 KiB@QD32) write.
- Capacities: 2.5-inch drives offer capacities up to 61.44 TB, while E3.S drives support up to 30.72 TB.
- Quantum-Ready Security: CNSA 2.0 signing algorithm support, preparing for future quantum computing threats.
Optimizing GPU Utilization for AI and HPC Workloads
In AI and HPC environments, GPUs are the workhorses driving computational performance. However, their efficiency is heavily dependent on the speed and reliability of the storage infrastructure that feeds them data. “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.”
With its superior performance and efficiency, the CD9P Series ensures that GPUs operate at peak capacity, minimizing bottlenecks and maximizing productivity. This makes it an invaluable asset for organizations leveraging AI, machine learning, and HPC applications.
Doubling Capacity and Enhancing Scalability
One of the standout features of the CD9P Series is its ability to double the storage capacity available per SSD compared to the previous generation. This leap in capacity enables data centers to store and process more data within the same physical footprint, reducing space requirements and lowering operational costs. The increased storage density also enhances scalability, allowing organizations to future-proof their infrastructure as data demands continue to grow.
Showcasing Innovation at HPE Discover Las Vegas 2025
KIOXIA CD9P Series SSDs are currently sampling to select customers and will be showcased at HPE® Discover Las Vegas 2025, scheduled for June 23–26. This event provides an opportunity for attendees to witness firsthand how the CD9P Series is redefining storage performance and efficiency for AI and HPC workloads.
Why the CD9P Series Matters
The KIOXIA CD9P Series represents a major leap forward in enterprise storage technology. By combining advanced CBA architecture with PCIe 5.0 performance, it addresses the growing challenges faced by AI and HPC environments. Its breakthroughs in power efficiency, speed, and capacity ensure that GPUs remain fully utilized, enabling organizations to extract maximum value from their investments in accelerated computing.
Moreover, the CD9P Series’ focus on power efficiency aligns with the industry’s push toward sustainable data center operations. By delivering higher performance per watt, it helps reduce energy consumption and operational costs, contributing to a greener future for data centers.
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.
