10-2672-02 Cisco QSFP+ Transceiver Module 40 Gbps Multi-Mode

Cisco 10-2672-02 40Gbps QSFP Transceiver Module Outline

The Cisco 10-2672-02 QSFP transceiver module is a high-speed, multi-mode fiber optic solution designed to deliver reliable 40Gbps network connectivity. Built for modern data centers and enterprise networking environments, this plug-in transceiver ensures fast, stable, and efficient data transmission over short-range optical links.

General Information

• Manufacturer: Cisco
• Part Number: 10-2672-02
• Product Type: Optical Transceiver Module

Technical Specifications

• Data Link Protocol: 40 Gigabit Ethernet
• Transmission Speed: 40 Gbps
• Optical Wavelength: 850 nm for multi-mode fiber
• Maximum Distance: Up to 490 feet
• Standards Compliance: IEEE 802.3ba certified

Form Factor and Connectivity

• Interface Type: 1 x 40Gb Ethernet MPO multi-mode fiber
• Supported Slot: 1 x QSFP+ port
• Connectivity Technology: Wired optical fiber connection

Applications and Use Cases

• Data center interconnects
• Enterprise network backbone upgrades
• High-speed server-to-switch connectivity
• Cloud computing infrastructure networks
• Storage area network (SAN) deployments

Benefits of Cisco 10-2672-02 QSFP Module

• Stable and low-latency optical transmission
• Easy plug-and-play installation with hot-swap support
• Energy-efficient networking solution
• Compatible with Cisco QSFP+ supported hardware
• Reliable performance for mission-critical applications

Key Product Highlights

• 40 Gigabit Ethernet data transfer speed
• Hot-swappable QSFP+ form factor for easy installation
• Multi-mode fiber support with MPO connector interface
• Optimized for short-range high-bandwidth networking
• Fully compliant with IEEE 802.3ba standards

Cisco 10-2672-02 40Gbps Multi-mode QSFP Transceiver

The Cisco 10-2672-02 40Gbps Multi-mode Fiber 850nm MPO Connector Hot-Swappable QSFP Transceiver Module represents a high-performance optical networking component engineered for modern high-density data center environments.

This module is widely deployed in spine-leaf topologies, high-speed aggregation layers, and backbone interconnects where low latency, high reliability, and consistent optical performance are essential. Its 850nm wavelength operation and MPO (Multi-fiber Push-On) connector architecture make it particularly suitable for short-range parallel optical transmission over multimode fiber cabling systems, enabling efficient data movement within and between data center racks.

QSFP Architecture and High-Speed Optical Design Principles

Quad Channel Parallel Transmission Structure

The QSFP architecture utilized in the Cisco 10-2672-02 module is built around four independent high-speed electrical and optical channels operating in parallel. Each channel contributes to the aggregated 40Gbps bandwidth capacity, ensuring efficient distribution of data across multiple lanes. This parallelism significantly enhances throughput while maintaining signal integrity and minimizing latency across high-density switching environments.

Each optical lane is carefully synchronized to ensure uniform signal timing and minimal skew, which is essential in maintaining deterministic network performance. The design also allows for optimized power efficiency compared to multiple discrete 10Gbps transceivers, reducing both energy consumption and physical port density requirements in modern switching equipment.

Integration with High-Density Switch Platforms

This transceiver module is engineered for seamless integration into QSFP+ compatible switch and router platforms, where space efficiency and high port density are critical. The compact form factor allows network architects to maximize port utilization within constrained rack space, enabling scalable deployment strategies in enterprise and hyperscale environments.

The module’s hot-swappable design ensures that maintenance, upgrades, or replacements can be performed without interrupting network operations. This capability is essential in mission-critical environments where downtime must be minimized or eliminated entirely.

850nm Optical Wavelength and Multimode Fiber Optimization

Short-Wavelength Optical Transmission Characteristics

Operating at a wavelength of 850nm, the Cisco 10-2672-02 transceiver is optimized for multimode fiber (MMF) environments. This wavelength is ideal for short-range transmission scenarios commonly found within data centers, where distances typically range from a few meters to several hundred meters depending on fiber grade.

The 850nm wavelength allows for efficient vertical-cavity surface-emitting laser (VCSEL) operation, which provides stable optical output, low power consumption, and cost-effective manufacturing scalability. VCSEL-based transmission is particularly well-suited for parallel optical communication systems such as those used in QSFP+ modules.

Multimode Fiber Compatibility and Performance

Multimode fiber infrastructure plays a critical role in supporting high-speed data transmission within structured cabling systems. The Cisco 10-2672-02 module is designed to operate effectively with OM3 and OM4 fiber types, enabling reliable 40Gbps transmission over optimized distances. OM4 fiber, in particular, extends reach and improves modal dispersion performance, ensuring cleaner signal propagation.

The MPO connector interface enables simultaneous transmission across multiple fiber strands, typically using 8 or 12-fiber configurations depending on system design. This parallel optical architecture significantly increases bandwidth density while maintaining predictable optical loss budgets.

MPO Connector Interface and Physical Layer Efficiency

Multi-Fiber Push-On Connector Design

The MPO connector is a key structural component of the Cisco 10-2672-02 module, enabling compact, high-density fiber termination. Unlike single-fiber LC connectors, MPO connectors aggregate multiple optical fibers into a single interface, reducing cable clutter and simplifying high-density cabling systems.

This design improves installation efficiency in data center environments where rapid deployment and structured cable management are essential. The connector alignment system ensures precise fiber-to-fiber coupling, minimizing insertion loss and maximizing optical performance consistency across channels.

Signal Integrity and Alignment Precision

Maintaining signal integrity in parallel optical systems requires extremely tight alignment tolerances. The MPO connector used in this module incorporates precision guide pins and alignment keys to ensure consistent mating accuracy. This reduces optical signal degradation caused by misalignment or physical stress on the fiber strands.

In high-speed 40Gbps environments, even minor signal distortions can impact performance. Therefore, the MPO interface design plays a crucial role in preserving end-to-end transmission quality, particularly in densely packed cable trays and switching racks.

Hot-Swappable QSFP Module Functionality

Live Network Replacement Capability

One of the defining features of the Cisco 10-2672-02 module is its hot-swappable capability. This allows network administrators to insert or remove the transceiver without shutting down the host device. This feature is essential in maintaining continuous network uptime in enterprise and cloud data center environments.

Hot swapping reduces operational disruption and enables proactive maintenance strategies. Faulty modules can be replaced immediately, and upgrades can be performed without affecting ongoing network traffic or requiring system reboots.

Operational Stability and Power Management

The module incorporates advanced power management systems that regulate energy consumption based on operational state. During insertion, initialization, and active transmission, the module dynamically adjusts power usage to maintain optimal performance while reducing unnecessary energy draw.

This contributes to overall data center energy efficiency, which is increasingly important in large-scale deployments where hundreds or thousands of transceivers may be active simultaneously.

40Gbps Bandwidth Applications in Modern Data Centers

High-Performance Computing and Virtualization

The 40Gbps throughput provided by the Cisco 10-2672-02 module supports demanding workloads in high-performance computing clusters and virtualized environments. These workloads often require rapid data exchange between compute nodes, storage systems, and distributed application layers.

By enabling low-latency, high-bandwidth communication, this transceiver helps reduce bottlenecks in east-west traffic patterns commonly seen in modern distributed architectures. This is particularly beneficial for containerized applications and microservices-based infrastructures.

Cloud Data Center Backbone Connectivity

In cloud environments, backbone connectivity between aggregation and core switching layers requires consistent and scalable bandwidth delivery. The 40Gbps capacity of this module ensures that data flows efficiently between server racks, storage arrays, and routing layers without congestion.

This makes it an ideal choice for hyperscale environments where traffic patterns are unpredictable, and scalability is a critical requirement.

Optical Performance, Reliability, and Signal Optimization

Low Latency and High Signal Stability

The Cisco 10-2672-02 transceiver is engineered to deliver low-latency performance by minimizing signal processing delays and optimizing optical-electrical conversion efficiency. This ensures that data packets are transmitted with minimal delay, which is essential for latency-sensitive applications such as financial trading platforms, real-time analytics, and distributed databases.

Signal stability is maintained through advanced error correction mechanisms and precise optical modulation techniques that reduce bit error rates even in high-density networking environments.

Thermal Performance and Environmental Adaptability

Thermal management is an essential aspect of transceiver design. The module is built to operate within standard data center temperature ranges while maintaining consistent optical output performance. Heat dissipation is optimized through efficient internal circuitry design and material selection that supports sustained high-speed operation.

Environmental adaptability ensures that the module can function reliably in varying airflow conditions commonly found in modern rack-based deployments.

Deployment Scenarios and Network Architecture Integration

Spine-Leaf Topology Implementation

The Cisco 10-2672-02 module is frequently deployed in spine-leaf architectures, where it serves as a high-speed interconnect between leaf switches and spine aggregation layers. This architecture is widely used in modern data centers due to its scalability and predictable latency characteristics.

The 40Gbps bandwidth ensures sufficient capacity for handling large volumes of east-west traffic between compute nodes distributed across the network fabric.

Storage Area Network and High-Speed Data Exchange

In storage area networks, this transceiver supports rapid data replication, backup synchronization, and distributed storage access. The high throughput reduces latency in storage operations and ensures consistent performance during peak traffic conditions.

This is particularly valuable in environments utilizing distributed storage systems where data integrity and synchronization speed are critical.

Durability in Continuous Operation Environments

The Cisco 10-2672-02 module is designed for continuous operation in enterprise-grade environments. Its components are selected for durability, ensuring long operational lifecycles even under sustained high-bandwidth usage.

This reliability is essential in data centers that require 24/7 uptime and cannot tolerate frequent hardware failures or performance degradation over time.