SKU: 88407579393

Cisco DC SN840 6.40 TB Solid State Drive - 2.5" Internal - U.2 (SFF-8639) NVMe

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Description

Cisco DC SN840 6.40 TB Solid State Drive - 2.5" Internal - U.2 (SFF-8639) NVMeCisco DC SN840 6. 40 TB NVMe SSD 2. 5" Internal U. 2 (SFF 8639) The Cisco DC SN840 6. 40 TB Solid State Drive is engineered to deliver unparalleled performance and reliability for modern data centers and enterprise environments. This 2. 5" internal NVMe SSD drives demanding workloads with impressive capacity, leveraging U. 2 (SFF 8639) connectivity to maximize throughput and minimize latency. Built for data intensive applicationsfrom real time

Cisco DC SN840 6.40 TB NVMe SSD — 2.5" Internal U.2 (SFF-8639)

The Cisco DC SN840 6.40 TB Solid State Drive is engineered to deliver unparalleled performance and reliability for modern data centers and enterprise environments. This 2.5" internal NVMe SSD drives demanding workloads with impressive capacity, leveraging U.2 (SFF-8639) connectivity to maximize throughput and minimize latency. Built for data-intensive applications—from real-time analytics and database operations to virtualization, AI inference, and large-scale backups—the SN840 is a foundational component of Cisco’s storage strategy for dense, scalable, and resilient infrastructure. Whether you are modernizing a single rack or architecting a globally distributed data center, the SN840 empowers you to accelerate critical workflows, reduce rack-space dependencies, and drive lower total cost of ownership through efficient, high-performance storage.

  • The SN840 delivers NVMe performance optimized for enterprise workloads, offering low latency and high input/output operations per second (IOPS) to accelerate latency-sensitive applications and data-intensive tasks, while supporting sustained throughput for streaming data and analytics pipelines.
  • With a robust 6.40 TB capacity, this drive enables dense storage configurations, large-scale databases, and persistent data retention without compromising on performance. It helps data centers scale their storage pools efficiently, enabling faster backups, longer data retention windows, and more room for growth within the same number of server bays.
  • 2.5" internal form factor with U.2 (SFF-8639) connectivity ensures seamless integration into enterprise servers, storage arrays, and Cisco-based backplanes. The drive is designed to slot into standard 2.5" drive bays, simplifying deployment in existing racks and enabling hot-swapping in compatible environments to maximize uptime.
  • Engineered for reliability, the SN840 combines enterprise-grade endurance with efficient power consumption to support round-the-clock workloads. This makes it suitable for virtualized environments, mission-critical databases, and AI workloads that require consistent performance over long service lifetimes.
  • Designed for Cisco ecosystems and data center optimization, the SN840 integrates smoothly with Cisco UCS, storage controllers, and Cisco-branded backplanes. It is purpose-built to deliver predictable performance within Cisco’s infrastructure, helping operators streamline management, firmware updates, and reliability monitoring across the data center.

Technical Details of Cisco DC SN840 6.40 TB Solid State Drive

  • Capacity: 6.40 TB
  • Form Factor: 2.5" Internal
  • Interface: NVMe over U.2 (SFF-8639)
  • Connector: SFF-8639 (U.2) compatible backplane and cabling
  • Warranty: Manufacturer terms vary by region; refer to Cisco warranty documentation for your location
  • Hot-swappability: Supported in compatible enterprise backplanes and hot-swap drive bays

How to install Cisco DC SN840

  • Power down the server or storage enclosure and disconnect power to ensure safe handling of components.
  • Locate an available 2.5" drive bay with U.2 (SFF-8639) support in your server, storage array, or Cisco backplane. Confirm that the chassis provides a compatible data and power interface for the SN840.
  • Remove the drive sled or blanking bezel from the target bay if required, then align the SN840 with the backplane connector to ensure proper insertion.
  • Slide the drive into the bay until it seats firmly, then secure it with screws or latch mechanisms as dictated by the chassis design. Ensure the backplane connection is fully engaged for reliable power and data transfer.
  • Connect the appropriate U.2 data and power cables (or rely on the backplane’s hot-swap mechanism). Power on the system and enter the server’s or storage controller’s management interface to recognize the new drive.
  • Initialize the drive through the operating system or storage controller, perform any required firmware updates, and configure for your preferred storage tiering, RAID/erasure coding, or NVMe over Fabrics (NVMe-oF) setup if applicable.
  • Optionally run health checks and firmware verifications using Cisco’s management tools to verify optimal operation and to enable ongoing monitoring of endurance and performance.

Frequently asked questions

  • Q: Is the Cisco DC SN840 compatible with all Cisco servers and storage backplanes?
    A: The SN840 is designed for Cisco data center ecosystems and is recommended for use with Cisco UCS series servers and Cisco-supported backplanes. Always verify compatibility with your specific Cisco hardware model and firmware level before deployment.
  • Q: What workloads is the SN840 best suited for?
    A: The SN840 excels in enterprise workloads that demand high throughput and low latency, including real-time analytics, large-scale databases, virtualization platforms, AI/ML workloads, and dense backup or archival operations. Its 6.40 TB capacity makes it ideal for data-intensive environments requiring both speed and space.
  • Q: How does NVMe over U.2 (SFF-8639) benefit data centers?
    A: NVMe over U.2 enables direct PCIe-based access to the NVMe drive with a standard 2.5" form factor. This combination provides low-latency, high-bandwidth storage access, simplifies integration into enterprise backplanes, and supports hot-swapping in many Cisco-compatible systems—reducing downtime and improving operational efficiency.
  • Q: What about reliability and endurance?
    A: Enterprise NVMe SSDs like the SN840 are built for consistent performance under demanding workloads with wear-leveling, robust error correction, and monitoring features. Always consult the local Cisco warranty and support terms for long-term reliability guarantees and firmware management.
  • Q: How do I update firmware or manage the drive within a Cisco environment?
    A: Use Cisco’s management tools and the server’s/ storage controller’s firmware update utilities to monitor health, perform firmware updates, and configure drive-level settings. Regular firmware maintenance is recommended to ensure optimal performance and compatibility with evolving Cisco infrastructure.
  • Q: Can I use the SN840 in non-Cisco environments?
    A: While designed for Cisco data centers, the SN840 may be compatible with other enterprise-grade servers and backplanes that support 2.5" U.2 NVMe drives. Always confirm compatibility with the hardware vendor and warranty terms before installing outside Cisco ecosystems.
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SKU: 88407579393

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My son hasn’t worn these yet since it’s December in Indiana and sandals + snow obviously don’t mix. 😂 So this review is based on first impressions rather than long term wear. That said, these seem wider than a lot of typical kids’ sandals, which I REALLY appreciate since we tend to have wider feet in our family. #hobbitfeet The quality feels pretty decent overall. They’re described as lightweight, and while they’re not insanely lightweight, they do have enough weight to feel semi-sturdy and not flimsy or cheap. I like the style and color, and I think they’ll work well for my son once warmer weather hits. My main complaint is the price. At just under $24 at the time of this review, it feels a little high for kids’ sandals and for what these are. I really feel like $20 MAX would make more sense. Kids shoes are almost always priced like adult shoes, even though they clearly use less material, and that’s hard for me to understand and wrap my mind around. Overall, these seem solid for daily wear, I just wish the price was a bit more reasonable and affordable.
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