KCM6XRUL960G Kioxia CM6-R SSD 960GB NVme

The Kioxia KCM6XRUL960G CM6-R 960GB 4.0 NVMe SSD

The Kioxia KCM6XRUL960G CM6-R 960GB PCI Express 4.0 (NVMe) SSD is a high-performance enterprise-class solid-state drive designed for modern data centers and demanding storage environments. With its PCIe 4.0 interface and NVMe 1.4 protocol, this SSD delivers exceptional speed, low latency, and reliability. Built by Kioxia—a trusted leader in flash memory innovation—the CM6-R series is engineered for read-intensive workloads while maintaining excellent endurance and power efficiency.

This drive offers next-generation data throughput, making it ideal for cloud computing, virtualization, AI inference, and large-scale enterprise applications that require consistent performance and reliability. The 960GB capacity provides a balanced combination of storage density and cost efficiency, suitable for both primary storage and cache acceleration roles.

Key Features of the Kioxia CM6-R 960GB SSD

PCIe 4.0 Interface and NVMe 1.4 Protocol

The KCM6XRUL960G utilizes the PCIe 4.0 interface, which offers double the bandwidth of PCIe 3.0. With up to 64 GT/s across 16 lanes, this interface enables faster data transfer rates and improved efficiency for high-performance storage applications. Combined with the NVMe 1.4 protocol, the drive provides optimized command handling and improved I/O processing, minimizing latency and maximizing throughput.

NVMe 1.4 also introduces enhanced features such as namespace management, persistent event log, and end-to-end data protection, which improve overall reliability and scalability in enterprise storage infrastructures.

High-Speed Data Transfer and Low Latency

Thanks to advanced Kioxia controller technology and the PCIe Gen4 x4 interface, the Kioxia CM6-R 960GB SSD achieves impressive sequential read speeds of up to 6,900 MB/s and sequential write speeds of up to 4,200 MB/s. Random read and write operations reach hundreds of thousands of IOPS, ensuring fast access to frequently used data and superior performance under mixed workloads.

This low-latency design is crucial for applications such as online transaction processing (OLTP), database analytics, content delivery networks, and real-time computing environments.

TLC NAND Flash Technology

The KCM6XRUL960G is built using Kioxia’s proprietary BiCS FLASH™ 3D TLC NAND technology. This architecture stacks multiple layers of flash cells vertically, significantly increasing storage density, performance, and endurance. The use of triple-level cell (TLC) NAND ensures a cost-effective balance between high capacity and reliable data retention.

Kioxia’s BiCS FLASH technology also enhances data integrity and reduces interference between cells, allowing the CM6-R 960GB SSD to maintain consistent performance and reliability throughout its operational lifespan.

Performance and Endurance

Sequential and Random Performance

The Kioxia KCM6XRUL960G CM6-R delivers sequential read speeds up to 6.9 GB/s and write speeds up to 4.2 GB/s. For random operations, it achieves up to 1 million IOPS in read performance and up to 250,000 IOPS in write performance, depending on workload conditions. This combination of speed and reliability makes it suitable for diverse enterprise tasks such as AI model training, database querying, and storage virtualization.

Endurance and Drive Writes Per Day (DWPD)

The CM6-R series is designed for read-intensive applications and features a typical endurance rating of 1 DWPD (Drive Write Per Day). This means the entire capacity of the SSD can be rewritten once per day over its five-year warranty period. This endurance level ensures long-term reliability while maintaining exceptional read performance.

Latency and Quality of Service (QoS)

Consistent latency and predictable performance are key differentiators of enterprise-grade drives. The CM6-R 960GB SSD provides ultra-low latency, with typical read latencies below 100 microseconds. Its superior Quality of Service ensures minimal performance variability, which is critical for mission-critical applications that demand consistent data access times.

Durability and Environmental

Operational Temperature and Shock Resistance

The KCM6XRUL960G is built to withstand rigorous data center conditions, operating reliably within temperatures ranging from 0°C to 70°C. It supports high shock and vibration tolerance levels, ensuring stable operation even in dense rack configurations or mobile data systems.

Advantages of Choosing the Kioxia CM6-R 960GB NVMe SSD

Superior Performance for Enterprise Workloads

The CM6-R’s ability to deliver high-speed data access, low latency, and consistent throughput makes it an excellent choice for demanding enterprise applications. Its PCIe Gen4 architecture doubles data transfer capabilities compared to Gen3 drives, providing a measurable performance boost for applications requiring high I/O.

Optimized for Data-Centric Infrastructure

Businesses operating large-scale databases or distributed computing frameworks can benefit significantly from the CM6-R’s architecture. It enhances overall system responsiveness and supports data-intensive frameworks such as Hadoop, Spark, and real-time analytics platforms.

Enhanced Reliability and Security

With multiple layers of data protection and optional encryption capabilities, the CM6-R ensures data remains secure from corruption or unauthorized access. Its robust design and long MTBF rating make it an ideal solution for critical applications that cannot afford downtime or data loss.

Scalable and Flexible Deployment

The CM6-R series supports both U.2 and U.3 backplanes, allowing for flexible integration into existing infrastructure. Its broad compatibility with enterprise-grade servers and storage platforms enables smooth deployment in new installations or as part of storage upgrades.

Use Case Scenarios for the Kioxia CM6-R 960GB SSD

Data Center Virtualization

Virtualized data centers rely heavily on fast storage to manage numerous simultaneous workloads. The CM6-R’s high IOPS and low latency enhance virtual machine responsiveness and reduce boot and load times, improving overall system performance.

Content Delivery Networks (CDNs)

CDNs benefit from the CM6-R’s read-optimized performance by enabling faster content distribution and improved caching. The consistent throughput ensures that end-users experience low-latency access to frequently requested data such as streaming media or software updates.

Cloud Infrastructure and Edge Computing

In distributed environments, the CM6-R 960GB drive supports rapid data movement and processing at the edge, reducing network congestion and improving real-time decision-making for IoT, AI inference, and analytics workloads.

Comparing Kioxia CM6-R with Other SSDs

CM6-R vs. CM6-V Series

The CM6-R series focuses on read-intensive workloads, offering cost-effective performance for environments dominated by data retrieval operations. In contrast, the CM6-V series is optimized for mixed-use or write-intensive workloads. Businesses can choose between the two depending on their specific storage profile and endurance requirements.

CM6-R vs. CD6-R Series

While the CM6-R targets enterprise-grade deployments with PCIe Gen4 and NVMe 1.4 features, the CD6-R series is geared toward cloud data center deployments, offering a balance between cost and performance. The CM6-R generally offers higher reliability and broader feature support.

The Kioxia Enterprise SSD Solutions

Kioxia has a long-standing reputation for innovation in NAND flash memory technology. Their enterprise SSDs, including the CM6-R series, reflect years of engineering experience and a deep understanding of data center challenges. The CM6-R 960GB model embodies this expertise by combining high performance, endurance, and security into one compact and efficient package.

Whether deployed in a private cloud, public cloud, or hybrid environment, the CM6-R ensures that enterprise storage infrastructures can keep pace with growing data demands without compromising reliability or security.