TOKYO -- Kioxia Corporation, a world leader in memory solutions, announced the prototype development and 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. 8th generation BiCS FLASH™ features CBA (CMOS directly Bonded to Array) technology, a breakthrough architecture that significantly boosts power efficiency, performance, and storage density[1], while doubling the capacity available per SSD compared with the previous generation model[2].

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 HPC (high-performance computing) 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 and power metrics and total cost of ownership.

KIOXIA CD9P Series drives deliver 4-corner performance improvements of up to approximately 125% in random write, 30% in random read, 20% sequential read, and 25% in sequential write speeds compared to the previous generation[2].

Furthermore, performance per watt of power consumption has improved by approximately 60% in sequential read, 45% in sequential write, 55% in random read, and 100% (2x) in random write[2]. (Applies to the 15.36 terabyte (TB) model)

KIOXIA CD9P Series SSD highlights include (preliminary and subject to change):

· 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 KiB/QD32) - 14.8 GB/s Read and 7 GB/s Write
· Random performance (4KiB) - 2,600 KIOPS (QD512) Read and 750 KIOPS (QD32) Write
· 2.5-inch capacities up to 61.44 TB and E3.S capacities up to 30.72 TB
· CNSA 2.0 algorithm support [3]
(Prepared for the threat posed by quantum computers)

KIOXIA CD9P Series SSDs are now sampling to select customers and will be showcased at HPE Discover 2025, taking place June 23-26 in Las Vegas.

Notes
[1] Compared to the 6th generation BiCS FLASH™
[2] Compared to the KIOXIA CD8P Series
[3] The KIOXIA CD9P Series supports Leighton-Micali Signature (LMS) algorithm acknowledged by CNSA 2.0[4] 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.
[4] CNSA2.0: Commercial National Security Algorithm Suite 2.0

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