Cisco DC SN640 3.80 TB Solid State Drive - 2.5" Internal - U.2 (SFF-8639) NVMe

The Cisco DC SN640 3.80 TB Solid State Drive is a cutting-edge storage solution engineered to power today’s most demanding data centers. Built to deliver top-tier speed, reliability, and capacity, this internal 2.5-inch NVMe SSD uses the U.2 (SFF-8639) interface to provide enterprise-grade performance for servers, databases, virtualization, analytics, and cloud-native workloads. Designed with data-center realities in mind—constant access, mixed read/write workloads, and rapid scale—the SN640 combines robust endurance with efficient power usage, enabling you to meet service-level agreements while controlling operational costs.

• Massive capacity for dense, scalable storage - With 3.8 TB of usable space, the SN640 enables large-scale databases, virtual machines, and data-intensive applications to run without frequent rearchitecture. Its design emphasizes endurance and consistent performance across long-term deployments, helping you consolidate workloads and simplify capacity planning in virtualized environments, data lakes, and analytics pipelines.
• Outstanding NVMe performance for fast data access - Leveraging the NVMe protocol over a PCIe-compatible interface, this drive delivers high input/output operations per second (IOPS) and low latency. Expect snappy boot times, rapid database queries, and smoother real-time analytics, even under concurrent multi-tenant workloads that characterize modern data centers.
• Enterprise-grade reliability and data protection - Engineered for 24x7 operation, the SN640 includes protective features such as end-to-end data path protection, error correction, and power loss protection. These capabilities help preserve data integrity during unexpected power events and reduce the risk of data loss during peak workloads or maintenance cycles.
• Flexible deployment for Cisco ecosystems and beyond - The 2.5-inch form factor paired with the U.2 (SFF-8639) interface fits into a wide range of servers, storage arrays, and Cisco platforms, including Cisco UCS and HyperFlex environments. It’s designed for straightforward hot-plug replacement in compatible servers, enabling minimal downtime during upgrades or expansion projects.
• Comprehensive management, compatibility, and support - Cisco’s enterprise-grade firmware and ongoing software updates ensure compatibility with modern data-center management tools, firmware baselines, and monitoring workflows. This translates to predictable maintenance windows, streamlined lifecycle management, and reliable vendor support to keep mission-critical workloads online.

Technical Details of Cisco DC SN640 3.80 TB NVMe SSD

• Capacity: 3.8 TB
• Form factor: 2.5-inch
• Interface: U.2 (SFF-8639)
• Protocol: NVMe over PCIe
• Connector: SFF-8639
• Endurance and reliability: Enterprise-grade reliability features including end-to-end data protection and power loss protection to support continuous operation
• Compatibility: Designed for Cisco data center deployments and broadly compatible with servers and storage arrays supporting U.2 NVMe drives

How to install Cisco DC SN640

Installing the Cisco DC SN640 is straightforward in servers and storage bays that support 2.5-inch U.2 NVMe drives. Follow these general steps to ensure a clean, reliable upgrade or deployment:

1) Preparation: Power down the server or storage system and disconnect power sources. Verify that the chassis supports U.2 NVMe drives and that there is an available PCIe-enabled SATA/SAS controller or drive backplane compatible with the SN640. Confirm firmware baselines for the motherboard, storage controller, and the drive to ensure compatibility and optimal performance.

2) Physical installation: Remove the existing drive from the bay and inspect the drive slot for debris. Insert the SN640 into the 2.5-inch drive bay, ensuring the U.2 connector aligns properly with the backplane. Secure the drive with screws or mounting hardware as required by the chassis and backplane design. The drive should sit snugly without bending or forcing connectors.

3) cabling and backplane: Attach the U.2 data and power connectors securely to the drive and the backplane or controller. If your system uses a backplane with hot-plug capabilities, confirm that the drive is recognized during the post-power-on self-test (POST) and that the backplane supports rapid insertion/removal without data loss.

4) Initialization and firmware: Power on the system and enter the server BIOS/UEFI to ensure the SN640 is detected. If applicable, update the drive firmware to the latest release through the vendor management tools or the drive’s utility. In the operating system, initialize the NVMe device, configure RAID or storage pools if needed, and format with the desired filesystem. Running a quick health check with the system monitoring tools helps verify SMART attributes and overall drive health.

5) Monitoring and maintenance: Establish ongoing monitoring for temperature, endurance, and wear leveling through your management stack. Maintain a known-good backup strategy and include the SN640 in your disaster recovery plan. Periodically verify firmware updates and perform health checks to prevent surprises during peak business cycles.

Frequently asked questions

• What is the capacity of the Cisco DC SN640? The drive offers 3.80 TB of storage, designed for dense, scalable deployments in modern data centers.
• What interface and form factor does it use? It is a 2.5-inch internal solid state drive that uses the U.2 (SFF-8639) NVMe interface, optimized for enterprise servers and storage backplanes.
• Is the SN640 suitable for Cisco UCS and HyperFlex environments? Yes, the SN640 is engineered for Cisco data center ecosystems and is compatible with Cisco UCS, HyperFlex, and other supported Cisco platforms when used with appropriate firmware baselines.
• What reliability features does it offer? It includes enterprise-grade reliability features such as end-to-end data protection and power loss protection to safeguard data integrity during unexpected events and to support 24x7 workloads.
• How do I monitor and maintain this drive? Use standard enterprise storage management tools and Cisco-provided firmware updates to monitor health, temperature, and endurance. Regular backups and a tested recovery plan are essential for critical workloads.

In modern data environments, storage performance and reliability are foundational to delivering responsive applications, fast analytics, and resilient services. The Cisco DC SN640 3.80 TB NVMe SSD provides a balanced combination of high capacity, rapid access, and enterprise-grade protection in a compact 2.5-inch package. Its U.2 (SFF-8639) interface makes it a versatile addition to a wide range of servers and storage arrays, while its design aligns with Cisco’s broader data-center strategy for performance-led infrastructure. Whether you are consolidating workloads, accelerating virtualization, or enabling real-time analytics, the SN640 is built to handle the demanding needs of modern enterprises with predictable, sustained performance and robust data protection.