Friday, March 21st 2025

Kioxia's 122.8 TB NVMe SSD Based on BiCS NAND Flash Memory Pictured

Kioxia's LC9 Series 122.88 TB NVMe SSD was photographed on the show floor at NVIDIA's GTC 2025 by Tom's Hardware, revealing the first production-ready implementation of the company's BiCS FLASH generation 8 3D QLC technology with 2 Tb die density. The 2.5-inch form factor drive delivers immense storage density in the enterprise SSD market on a PCIe 5.0 connection. The LC9 Series features a dual-port design providing 128 GT/s throughput via PCIe 5.0 1x4 or 2x2 configurations, with NVMe 2.0 and NVMe-MI compliance. Built specifically to address density requirements for AI workloads, the drive leverages CMOS directly Bonded to Array (CBA) technology in its flash architecture. The enterprise-class unit is rated at 0.3 drive writes per day (DWPD) and 67,000 TBW endurance, positioning it for read-intensive applications rather than write-heavy workloads. The reported read speeds are around 15 GB/s, as demonstrated at the booth.

The LC9 supports vector database operations through Kioxia's AiSAQ technology implementation, which transfers vector database operations from DRAM to SSD storage. This approach significantly reduces system-level costs while maintaining acceptable latency profiles for AI RAG operations. Kioxia demonstrated the SSD at booth #1811 at the San Jose McEnery Convention Center through March 21, with live performance demonstrations highlighting its capabilities in AI dataset retrieval operations. The drive represents a critical advancement for enterprise AI infrastructure where data density and retrieval speeds are becoming bottlenecks in scaled LLM deployments. A massive capacity will allow entire enterprises to operate AI LLMs on top of company data with RAG and at low latency and high endurance.
Source: Tom's Hardware
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1 Comment on Kioxia's 122.8 TB NVMe SSD Based on BiCS NAND Flash Memory Pictured

#1
Wirko
AleksandarKproviding 128 GT/s throughput
Uh, no. I see you reported on PCIe 7 earlier today, and that magnificent number was still echoing in your head. But this here is back-to-Earth 32 GT/s, or 16 GB/s.
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Mar 22nd, 2025 15:29 EDT change timezone

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