Kioxia reveals 245TB SSD, the world's largest, targeting hyperscale data centers

Kioxia introduces the largest 245TB SSD, revolutionizing hyperscale data centers.

: Kioxia has unveiled the world's largest SSD with a whopping 245TB capacity, leveraging its 8th-gen BiCS FLASH technology. Targeting hyperscale data centers, this NVMe SSD offers unprecedented speeds of 12,000 MB/s for reads and 3,000 MB/s for writes. It is designed with dual-port PCIe 5.0 connectivity and advanced security features for optimal performance in AI and data-heavy environments. Kioxia plans to showcase this groundbreaking product at the Future of Memory and Storage 2025 conference.

Kioxia unveiled the world’s largest commercial SSD with a massive 245.76 TB capacity, part of its LC9 series. Designed specifically for hyperscale data centers and generative AI workloads, the drive marks a major milestone in ultra-dense storage. It targets environments that demand extreme scalability, high-capacity storage, and energy efficiency for cloud and AI infrastructure.

The record-breaking capacity is achieved using Kioxia’s BiCS8 3D QLC NAND chips, each with 2 Tb density. These are packaged into 32 x 8 TB dies per package, totaling 1024 NAND dies in an E3.L EDSFF form factor. This format is optimized for rack-scale deployments, offering superior cooling, capacity per slot, and hot-swap capabilities for hyperscale storage systems.

In terms of performance, the LC9 offers up to 12 GB/s sequential read and 3 GB/s write speeds. It delivers 1.3 million random read IOPS and 50,000 random write IOPS. While not the fastest in enterprise SSDs, its focus is on density and cost-efficiency. With 0.3 DWPD (drive writes per day), it is ideal for large-scale cold or warm storage workloads that prioritize capacity over write endurance.

The LC9 includes advanced data protection at the hardware level, such as die-level recovery, parity error correction, power loss protection, and Flexible Data Placement to minimize write amplification. It also features AES-256 encryption and compliance with CNSA 2.0 standards, ensuring post-quantum-ready security.

Kioxia is currently sampling the LC9 with select hyperscale customers, with commercial launch expected at the “Future of Memory and Storage” event from August 5–7, 2025, in Santa Clara. The SSD will be available in multiple form factors including U.2, E3.S, and E3.L, with pricing tailored to enterprise-level bulk orders.

Sources: Tom’s Hardware, TechSpot

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