Cisco QSFP Module – High-Speed 100G/40G Optical Ethernet Transceiver

Elevate your data center and campus core with the Cisco QSFP Module, a compact, high-density transceiver engineered for robust data networking and optical network deployments. Designed to deliver flexible, multi-rate performance, this QSFP module supports 100GBase-SR and 40GBase-X interfaces over multi-mode fiber, enabling seamless upgrades and versatile deployment options across modern networks. Built on Cisco’s reputation for reliability and interoperability, it plugs into standard QSFP ports to maximize bandwidth, minimize rack space usage, and simplify lifecycle management.

• High-density, scalable performance: The Cisco QSFP Module packs multi-rate capabilities into a compact QSFP form factor, supporting 100GBase-SR and 40GBase-X. This allows you to optimize port density on your switches and routers without sacrificing signal integrity. It is designed to deliver robust performance in modern data centers where space, cooling, and energy efficiency are critical, enabling you to scale your network as workloads grow and traffic patterns evolve.
• 1 x LC Duplex connector for flexible fiber layouts: Featuring a single LC duplex optical connector, this transceiver is designed for short-range fiber infrastructure in data centers and campus networks. The LC interface simplifies cabling, supports neat patching schemes, and reduces installation time, while maintaining Cisco-grade signal integrity and reliability. The LC duplex setup makes fiber management tidy and accessible, especially in dense rack environments.
• Multi-mode fiber compatibility for cost-effective deployments: The module is built to operate with multi-mode optical fiber, enabling cost-efficient transceiver options for high-speed links within racks, across rows, or between data-center switches. This makes it ideal for intra-data center links and short-reach uplinks where OM3/OM4 fiber is standard, ensuring you can leverage existing cabling investments and minimize total cost of ownership.
• Cisco reliability and interoperability: As a Cisco QSFP module, it is designed to deliver dependable performance across a variety of Cisco devices and fabric architectures. It is tested for interoperability with Cisco switching and routing platforms, ensuring stable operation in your data networking environment while simplifying maintenance, provisioning, and lifecycle planning. Rely on Cisco-grade compatibility to reduce unexpected downtime and streamline support.
• Flexible deployment for data networking and optical networking: This transceiver supports both 100 Gigabit Ethernet (100GBase-SR) and 40 Gigabit Ethernet (40GBase-X) applications, enabling cross-functional use in core, distribution, and access layers. Whether you are consolidating workloads, upgrading an existing fabric, or building a new topology, the module offers versatile connectivity for mixed-rate networks. It adapts to evolving network topologies without requiring a complete fiber overhaul, helping protect your existing investments.

Technical Details of Cisco QSFP Module

• Type: QSFP transceiver module
• Interface/Speed: 100GBase-SR and 40GBase-X compatibility
• Fiber Type: Multi-mode optical fiber
• Connector: 1 x LC duplex
• Ethernet Standards: 100 Gigabit Ethernet, 40 Gigabit Ethernet
• Applications: Data networking, optical networking
• Brand/Origin: Cisco QSFP Series

How to install Cisco QSFP Module

• Prepare your equipment by power-cycling or following the device’s recommended hot-swap procedure, and ensure you are grounded with proper anti-static precautions to protect sensitive optical components.
• Carefully handle the module by its edges and inspect the bay to confirm the QSFP slot and port are compatible with 100GBase-SR or 40GBase-X configurations before insertion.
• Gently align the Cisco QSFP Module with the QSFP slot, then insert it straight until it seats securely with a click or until the connector is fully engaged. Do not force the module or tilt it during seating to prevent damage to the slot or connector.
• Attach fiber cabling by connecting a compatible LC duplex fiber patch cord to the module, ensuring correct polarity and secure termination. Keep cabling tidy and avoid sharp bends to preserve optical performance.
• Power on the equipment (or confirm the device’s power status if hot-swapping is supported) and verify link status using the chassis indicators, management interface, or console logs. Confirm that the port negotiates at the intended speed (100G or 40G) and that the link is stable.
• Configure the network device as required by your topology: set the interface to the correct speed, enable any necessary transceiver-related features, and run a basic throughput test to validate performance and cabling integrity.

Frequently asked questions

• Q: What speeds does the Cisco QSFP Module support? A: It supports 100GBase-SR and 40GBase-X operation on multi-mode fiber, enabling high-speed Ethernet connectivity for data networking and optical networks as described in the product specs.
• Q: What type of fiber is used with this module? A: Multi-mode optical fiber is used, which is common for short-reach data-center links and cost-efficient deployments.
• Q: What connector does the module use? A: It uses a single LC duplex connector, aligning with standard multimode fiber infrastructure for straightforward installation and cable management.
• Q: Is this module compatible with Cisco devices? A: Yes, it is designed for Cisco devices that support QSFP modules and the associated Ethernet speeds; always verify compatibility with your specific switch or router model and OS version before installation.
• Q: How should I install and verify the module after installation? A: Follow the installation steps outlined above, ensure proper seating of the module, connect the correct LC fiber, and verify link status and throughput through your device’s management interface or CLI to confirm a healthy, active connection.