Cisco DC SN840 6.40 TB NVMe U.2 SSD — High-Performance 2.5" Internal Storage for Data Centers

The Cisco DC SN840 6.40 TB Solid State Drive is engineered to meet the rigorous demands of modern data centers. Built as a 2.5" internal NVMe drive with a U.2 (SFF-8639) connector, it delivers enterprise-class performance, reliability, and scalability in a compact form factor. This drive is ideal for organizations that require fast, consistent data access for large databases, virtualization, analytics, and AI workloads. With a generous capacity of 6.40 TB, it empowers you to consolidate more data and run demanding workloads without sacrificing latency or predictability.

• Blazing NVMe performance for demanding workloads — The SN840 leverages the advantages of NVMe over PCIe to deliver exceptional throughput and low latency. This means faster boot times, quicker database transactions, and near-instant access to hot data. In dense virtualized environments and data-intensive applications, the SN840 helps reduce I/O bottlenecks and accelerates real-time analytics without compromising consistency.
• Massive 6.4 TB capacity for modern workloads — With 6.40 terabytes of usable storage in a single drive, you can scale databases, catalogs, logs, and multimedia assets with fewer drives and simpler data management. The large capacity is particularly beneficial for hyperscale databases, large-scale virtualization, analytics pipelines, and AI model data that require rapid, continuous access to substantial data volumes.
• Enterprise-grade reliability and endurance — Cisco designs the SN840 for data-center reliability, offering robust endurance features and fault-tolerant behavior under heavy workloads. Expect strong data integrity protections, wear leveling, and safeguards required for 24/7 operation. This drives lower total cost of ownership by reducing drives refresh cycles and minimizing downtime due to drive-related failures.
• 2.5" U.2 form factor for seamless data-center integration — The drive’s 2.5" internal footprint supports broad compatibility with Cisco servers and plenty of enterprise backplanes. The U.2 (SFF-8639) interface is common in data-center storage arrays and rack-mount servers, enabling straightforward installation, hot-swap readiness (in supported platforms), and easy integration into existing Cisco storage ecosystems.
• Seamless management and Cisco-grade interoperability — Designed to work with Cisco management tools and lifecycle processes, the SN840 integrates smoothly into Cisco UCS and data-center orchestration. It provides reliable telemetry, firmware update pathways, and health monitoring aligned with enterprise policies, helping administrators maintain performance targets and simplify capacity planning.

Technical Details of Cisco DC SN840

• Capacity: 6.40 TB
• Form factor: 2.5" internal
• Interface: NVMe over PCIe
• Connector: U.2 (SFF-8639)
• Endurance: High endurance designed for enterprise workloads
• Sequential read/write: Optimized for large, sequential data transfers
• Reliability features: Data protection mechanisms, wear leveling, and reliability enhancements for consistent performance
• Management: Works with Cisco management ecosystems for monitoring, firmware updates, and capacity planning
• Warranty and support: Enterprise-grade terms aligned with Cisco product warranty policies

How to install Cisco DC SN840

• Power down the server or put the system into a maintenance window in accordance with your organization’s change-control procedures.
• Identify an available U.2 drive slot or compatible drive bay in your Cisco-supported server, storage chassis, or backplane designed for NVMe drives.
• Carefully align the SN840’s U.2 connector with the backplane or controller port, then insert the drive into the bay until it seats firmly.
• Secure the drive using the appropriate mounting screws and reconnect any backplane cables or rails per your server or chassis documentation.
• Power on the system and access the Cisco management console to perform a firmware check, initialize the drive, and create or extend NVMe namespaces as required by your workloads.
• Format and partition the drive according to your operating system or hypervisor guidelines, then verify health status and SMART attributes through your management tools.
• Update to the latest firmware if recommended by Cisco and validate performance with representative workloads to ensure the SN840 meets your service-level objectives.

Frequently asked questions

• Q: What is the Cisco DC SN840? A: The Cisco DC SN840 is a 6.40 TB NVMe solid-state drive in a 2.5" internal form factor using the U.2 interface (SFF-8639), designed for enterprise data-center applications that require high performance, capacity, and reliability.
• Q: Which workloads benefit most from the SN840? A: Large databases, analytics platforms, virtualization environments, real-time data processing, AI/ML workloads, and any data-intensive use case that demands fast access to substantial datasets.
• Q: Is the SN840 hot-swappable? A: Hot-swap capability depends on the server or storage chassis in use. When deployed in compatible Cisco servers and backplanes, the drive can be replaced with minimal downtime according to your maintenance procedures.
• Q: How does the SN840 help reduce total cost of ownership? A: By delivering high performance with a single high-capacity drive, it reduces the number of drives required, lowers power and cooling overhead, and minimizes maintenance and replacement cycles in sustained workloads.
• Q: How do I monitor the SN840? A: Use Cisco management tools and the system’s health monitoring features to track drive health, performance metrics, and firmware status. Regular telemetry helps with proactive maintenance and capacity planning.
• Q: What kind of warranty comes with the SN840? A: Enterprise-grade warranty and support terms consistent with Cisco’s storage products. Check the exact terms for your region and deployment model.