Cisco Expansion Module — 100GBase-X QSFP28 Plug-in Expansion for 36 Slots

Unlock unmatched scalability and dependable performance in data networking environments with the Cisco Expansion Module. Engineered for high-density deployments, this plug-in module delivers 100GBase-X capability through a robust QSFP28 interface and supports up to 36 expansion slots, enabling expansive, future-ready networks without sacrificing reliability. Designed to integrate seamlessly with Cisco switching and routing ecosystems, it optimizes throughput, reduces latency, and enhances uptime across data centers, optical networks, and enterprise backbones. Whether you’re expanding a spine-and-leaf fabric, upgrading a core distribution layer, or extending edge connectivity, this module offers the density, flexibility, and durability required to keep critical applications running smoothly at scale. Built to maximize productivity, it combines enterprise-grade dependability with the efficiency of high-speed fiber optics, delivering a powerful foundation for modern, bandwidth-hungry workloads.

• High-density 100GBase-X connectivity with ultra-fast data transfer up to 1000 Gbps, supporting demanding workloads and large-scale traffic patterns.
• 36 expansion slots for exceptional scalability, enabling dense port growth in data centers and campus networks without replacing existing infrastructure.
• QSFP28 interface offers flexible, forward-looking fiber connections to support high-speed optical networks and future upgrades.
• Plug-in module design for straightforward deployment and maintenance, minimizing downtime and simplifying field serviceability.
• Optimized for data networking and optical networks environments, delivering reliable performance in mission-critical applications with Cisco-grade reliability.

Technical Details of Cisco Expansion Module

• Product type: Expansion Module
• Interface: 100GBase-X via QSFP28
• Expansion slots: 36
• Form factor: Plug-in module
• Data throughput: Up to 1000 Gbps
• Applications: Data Networking, Optical Networking
• Fiber type: Optical Fiber
• Designed for use in Cisco data center and enterprise networking ecosystems
• Reliability features: Built to maximize uptime and productivity in high-demand networks

how to install Cisco Expansion Module

• Power down the host device or follow the specific hot-swap guidelines provided by your Cisco equipment documentation to prevent damage and ensure safety.
• Identify the correct expansion slot in your Cisco device, ensuring compatibility with the module’s form factor and interface requirements.
• Carefully align the module with the slot, avoiding bending pins or forcing the connector. Insert firmly until the module seats securely in place.
• Secure the module with any retention mechanism or screws required by your chassis or rack system, following your device’s installation procedures.
• Power on the device and verify that the module is detected by the management interface. Check status LEDs, confirm link up, and perform a basic throughput test to validate performance. If applicable, apply the latest firmware or software updates to ensure optimal compatibility and security.

Frequently asked questions

• Q: What is the Cisco Expansion Module used for? A: It is a plug-in expansion module designed for high-density data networking and optical network environments, delivering 100GBase-X QSFP28 connectivity and up to 1000 Gbps throughput across 36 expansion slots to support scalable network architectures.
• Q: What interfaces does this module use? A: The module uses a QSFP28 interface configured for 100GBase-X connectivity, enabling high-speed fiber links suitable for data center and enterprise backbone deployments.
• Q: How many expansion slots are supported? A: The module supports 36 expansion slots, providing substantial headroom for port density and future growth within compatible Cisco hardware.
• Q: What environments is the module intended for? A: It is designed for data networking and optical networking applications, including data centers, large-scale campus networks, and mission-critical enterprise backbones that require reliable, high-bandwidth connectivity.
• Q: How should I install and verify the module? A: Follow standard deployment procedures: safely power down or perform hot-swap per device guidelines, insert the plug-in module into the correct slot, secure it, power up the device, and verify detection and link status via the management interface. Run a basic throughput or diagnostic test to confirm operation and apply firmware updates if required for compatibility and security.