Cisco QSFP-DD Module
SKU: 86054344371

Cisco QSFP-DD Module

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Description

Cisco QSFP-DD ModuleThe Cisco QSFP DD Module family defines the pinnacle of bandwidth density for modern data centers, offering a scalable path to 400G networking while preserving backward compatibility with established lower speed QSFP pluggable modules and cables. Built for high performance fabrics and dense rack layouts, these modules enable data centers to scale throughput without sacrificing port density, power efficiency, or manageability. Designed to integrate

The Cisco QSFP-DD Module family defines the pinnacle of bandwidth density for modern data centers, offering a scalable path to 400G networking while preserving backward compatibility with established lower-speed QSFP pluggable modules and cables. Built for high-performance fabrics and dense rack layouts, these modules enable data centers to scale throughput without sacrificing port density, power efficiency, or manageability. Designed to integrate seamlessly with Cisco networking platforms, the QSFP-DD portfolio supports flexible deployment models—from cloud-scale deployments to enterprise campuses—each configured to maximize performance, reduce latency, and simplify cable management. Whether you are modernizing a greenfield data center or upgrading an existing infrastructure, Cisco QSFP-DD modules provide the foundation for a future-ready network that can grow with your organization’s evolving bandwidth needs.

  • Maximum bandwidth density: Enables 400G networking in a compact, hot-swappable form factor, delivering unprecedented throughput per port to meet the demands of data-intensive applications, AI workloads, and high-frequency trading environments.
  • Backward compatibility: Maintains a seamless upgrade path by supporting interoperability with legacy lower-speed QSFP pluggable modules and cables, allowing gradual migration without overhauling existing infrastructure.
  • Flexible cabling and reach: Supports a variety of cabling options, including Direct Attach Copper (DAC) and fiber optic cables, with module variants tailored for SR4, LR4, and other standards to optimize reach and cost per bit.
  • Hot-swappable design for minimal downtime: The modular, hot-swappable nature of QSFP-DD components reduces maintenance windows and service disruptions, enabling quick field swaps and upgrades while the network remains online where possible.
  • Cisco-ecosystem optimization: Engineered to work in harmony with Cisco switches, routers, and network management tools, enabling streamlined provisioning, monitoring, and lifecycle management through Cisco DNA Center and compatible OS environments.

Technical Details of Cisco QSFP-DD Module

  • Data rate: 400GBASE QSFP-DD per port, supporting high-bandwidth applications and scalable data center fabrics.
  • Form factor: QSFP-DD (Quad Small Form-Factor Pluggable Double Density) designed for high port density and efficient rack utilization.
  • Lane configuration: 4x100 Gbps lanes, enabling flexible mode configurations and compatibility with multi-lane optical signaling standards.
  • Compatibility: Backward compatible with select lower-speed QSFP pluggable modules and cables to facilitate smooth upgrades within existing infrastructures.
  • Supported cabling options: Supports Direct Attach Copper (DAC) and fiber optic cabling using appropriate transceiver types (e.g., SR4, LR4) depending on the specific module variant.

How to Install Cisco QSFP-DD Module

  • Prepare the system: Power down the device or disable the port as recommended by Cisco maintenance procedures to minimize risk during replacement or upgrade.
  • Inspect the port and module: Verify that the QSFP-DD port and the module are clean and free of debris; handle the module by the edges to avoid contamination.
  • Align and insert: Align the module with the port, ensuring the connector pins are properly seated. Press firmly until the latching mechanism engages and you hear an audible click.
  • Attach the cabling: Connect the appropriate DAC or fiber optic cable to the module’s transceiver ports, securing cables to prevent disconnection during operation.
  • Verify operation: Power on the device (if applicable) and check the port status in the management interface. Confirm link status, port speed, and error counters to ensure a healthy connection.
  • Document and monitor: Record the installation details (module type, serial number, port, and cabling) and monitor performance metrics over time to ensure sustained throughput and reliability.

Frequently Asked Questions

  • Q: What is a QSFP-DD module?
    A: A high-density, quad small form-factor pluggable transceiver designed to deliver 400GBASE data rates in a compact, modular package, using four high-speed lanes for scalable network throughput.
  • Q: Is the Cisco QSFP-DD module backward compatible with older QSFP modules?
    A: Yes. The Cisco QSFP-DD family is designed to maintain backward compatibility with select lower-speed QSFP pluggables and cables, enabling a phased upgrade path without large-scale overhauls to existing infrastructure.
  • Q: What kinds of cables can be used with QSFP-DD?
    A: Depending on the module variant, you can use Direct Attach Copper (DAC) cables or fiber optic cables (such as SR4, LR4) to connect to other devices in the network, optimizing for cost, distance, and power efficiency.
  • Q: How do I determine compatibility with Cisco gear?
    A: Refer to Cisco compatibility matrices and the product’s official documentation for supported transceiver types, port speeds, and firmware requirements. In many cases, you can upgrade in place if the port and chassis support 400GBASE QSFP-DD modules.
  • Q: What should I consider when planning a 400G deployment with QSFP-DD?
    A: Assess current and projected traffic, select appropriate module variants (SR4/LR4 or DAC), verify cabling quality and length, ensure power and cooling are adequate for higher-density transceivers, and align with your network’s management and monitoring capabilities for optimal performance.
  • Q: What is the warranty and support for Cisco QSFP-DD modules?
    A: Warranty and support terms vary by region and product line; consult Cisco’s regional policy and your authorized reseller for precise coverage and service options.
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SKU: 86054344371

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Jamie B
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★★★★★ 5
Durable , dogs love them !
Size: 2 Count (Pack of 1), Style: Pack of 2, Size: 2 Count (Pack of 1), Style: Pack of 2
These chuck it balls are a fan favorite of my own dogs and my foster pups . So much so I have sent my foster home with them when they go to their new families! I seriously need an endless supply !
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Reviewed in the United States on April 30, 2026
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Lexie
Cuba, US
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Whistles when thrown
Size: 2 Count (Pack of 1), Style: Pack of 2
One of my shepherd’s favorites! Truly does whistle when you throw it! Good quality!
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Reviewed in the United States on May 25, 2026
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Chris Hoekstra
West Palm Beach, US
★★★★★ 5
Whistle away my friend!
Size: 2 Count (Pack of 1), Style: Pack of 2
Love it! My dog loves it! The people at the dog park love it! The whistle is the best thing about these balls but the hard durable rubber and the denseness of the ball really make it fly. Let me quickly breakdown each of these: First the sound is like a...well, whistle coming from a human but oscillating and slightly different. It helps the dogs track where it goes and helps them find it better when it is getting dark (while flying of course, not when it is stationary). It barely makes a sound when throwing it with the wind but really howls when throwing it into the wind. This is why you get this ball and most everyone at the dog park perks up and wonders what that is, asks about it, and thinks it is very cool; which it is! Next is the durable rubber which doesn't have a single bite mark or split yet in 4 months of constant daily play for about 1 1/2 hours every day! The dog chews it as he brings it back and other dogs steal the ball and run with it while "killing" it perpetually and it has held up great. I don't claim this is going to be Kong ball durable but it is very well chosen rubber. Last is the denseness of the ball which really makes to go far in a chuckit launcher. One doesn't really notice how far this goes until going back to a tennis ball and realizing how short a tennis ball goes compared to this. The whistler ball, and presumably other chuckit rubber balls (glow, irregular bounce), go 30-40% farther when I throw then using the longest chuckit thrower. This is excellent and wears my retriever out even faster; not to mention the rippling muscles he has from sprinting that whole way! Overall I got both ball several months ago and we started with the blue ball and haven't had to touch the orange one yet. This is his goto ball at the park and it is the most popular ball, bar none, for all the dogs to steal. The bright blue aspect, the rubber aspect, the sound, and exclusivity of it make it coveted by dogs and owners. I might be gushing and glowing over this ball a bit much but I tend to do that when something unexpected ends up being part of your everyday life and blows you away at how wonderful it is.
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Murzeig
Louisville, US
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Great for dogs that are chewers
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These are wonderful for our dog. The bright colors help us find them when our dog can't. The size is perfect to play fetch. Our dog will chew on it a bit and it stays together and does not fall apart. That is a big bonus because our dog is a chewer!
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Drippy
Lowell, US
★★★★★ 5
It's A Whistler!
Size: Medium (Pack of 1), Style: Pack of 1
This Chuckit! Whistler Ball is basically a regular fetch toy that decided to become an annoying little teakettle mid-air. My dog goes absolutely nuts for it—every throw sounds like a tiny referee is shrieking "foul!" the whole way across the yard. He chases it harder than he chases the mailman, and bonus: I can actually find it in tall grass because it's screaming for help. Super bouncy, tough enough that he hasn't destroyed it yet (miracle), and now our walks sound like a low-budget horror movie.
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Reviewed in the United States on February 14, 2026

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