SFP-10G-BX40U-I Cisco SFP+ Transceiver SM 10G LC

Cisco SFP-10G-BX40U-I 10 Gigabit SFP+ Transceiver Outline

The Cisco SFP-10G-BX40U-I is a high-performance 10 Gigabit bidirectional optical transceiver engineered for long-range fiber communication in enterprise, carrier-grade, and data center networking environments. Designed to support dependable 10Gb Ethernet connectivity, this SFP+ module enables efficient single-fiber deployment while reducing cabling complexity and infrastructure costs.

Built with advanced optical transmission technology, this compact hot-swappable module delivers reliable network performance across extended distances up to 40 kilometers over single-mode fiber. Its robust industrial-grade operating temperature range makes it suitable for demanding environments requiring stable and continuous operation.

General Product Specifications

• Brand: Cisco
• Model Number: SFP-10G-BX40U-I
• Category: Optical Transceiver Module
• Interface Type: SFP+

Key Features of Cisco SFP-10G-BX40U-I Transceiver

• Supports up to 10 Gbps high-speed data transmission
• Operates over single-mode optical fiber
• Bidirectional communication through one fiber strand
• 1270 nm optical wavelength transmission
• Long-distance connectivity reaching up to 40 km
• Compact SFP+ form factor for flexible deployment
• Low energy consumption of only 1.5 watts
• Industrial temperature support from -40°C to 85°C
• Compatible with 10 Gigabit Ethernet environments
• Certified with CE, FCC, and UL compliance standards

Physical Characteristics

• Dimensions: 13.4 × 56.5 × 8.5 mm
• Form Factor: SFP+
• Connector Interface: LC

Optical Transmission Performance

Enhanced Data Throughput Benefits

• Improved network responsiveness
• Reduced transmission delays
• Efficient large-volume data handling
• Reliable application performance
• Optimized infrastructure scalability

Advantages of Single-Fiber Transmission

• Lower cable deployment costs
• Efficient use of fiber resources
• Reduced network complexity
• Simplified installation process
• Enhanced infrastructure flexibility

Long-Distance Networking Capability

• Enterprise campus networking
• Telecommunication infrastructure
• Metro Ethernet deployments
• Remote office interconnection
• Industrial networking environments
• Data center extension projects

Single-Mode Fiber and Bidirectional Communication

Benefits of Single-Mode Optical Networks

• Extended reach capability
• Reduced signal degradation
• Higher network stability
• Scalable bandwidth expansion
• Long-term infrastructure investment

Bidirectional Duplex Operation

• Lower infrastructure expenses
• Reduced fiber requirements
• Simplified cable management
• Efficient optical resource utilization

Industrial-Grade Reliability and Environmental Performance

Suitable Environmental Conditions

• Industrial automation sites
• Outdoor communication cabinets
• Manufacturing facilities
• Telecommunication hubs
• Mission-critical network deployments

Long-Term Operational Stability

• Improved network uptime
• Lower replacement frequency
• Reduced maintenance costs
• Higher operational continuity

Power Budget and Output Performance

• Optical Output: -1 to +5 dBm
• Receiver Sensitivity: -24 dBm
• Power Budget: 23 dB

Compatibility and Compliance Standards

Supported Network Applications

• Enterprise switching
• Core network architecture
• Aggregation layers
• Cloud infrastructure
• Data center connectivity

Industry Certifications

• CE Certified
• FCC Approved
• UL Compliant

Cisco SFP-10G-BX40U-I 10 Gigabit SFP+ Transceiver Module

The Cisco SFP-10G-BX40U-I 10 Gigabit SFP+ LC Single Mode Transceiver Module is designed to deliver reliable, long-distance, high-bandwidth optical connectivity across enterprise, carrier, and data center environments. Built to support modern networking requirements, this transceiver enables efficient transmission of 10 Gigabit Ethernet traffic using single-mode fiber infrastructure while maintaining excellent signal integrity and operational stability.

As network architectures continue evolving toward greater scalability and faster data exchange, organizations increasingly require optical components capable of sustaining demanding workloads while reducing infrastructure complexity. The Cisco SFP-10G-BX40U-I addresses these requirements through bidirectional optical communication, allowing simultaneous transmission and reception over a single strand of fiber.

Understanding the Cisco SFP-10G-BX40U-I Architecture

The SFP-10G-BX40U-I belongs to the Small Form-Factor Pluggable Plus transceiver family, developed specifically for compact deployment and high-speed optical communication. Its compact footprint allows network engineers to maximize switch and router density while maintaining flexibility in network expansion strategies.

This module supports 10 Gigabit data transfer capabilities and utilizes LC optical connectivity combined with single-mode transmission characteristics. The implementation of bidirectional technology enables more efficient use of existing cabling infrastructure and helps optimize fiber utilization across distributed environments.

SFP+ Form Factor Advantages

The SFP+ interface has become a preferred standard for high-performance network environments because it enables increased throughput without significantly increasing power consumption or physical equipment size. Compared with earlier transceiver generations, SFP+ technology offers enhanced signal performance and improved deployment flexibility.

Network administrators benefit from modular deployment models because transceivers can be installed, replaced, upgraded, or expanded without requiring complete hardware replacement.

Single Mode Optical Transmission Characteristics

Single-mode fiber technology supports long-distance communication by transmitting optical signals through a narrow light path that minimizes modal dispersion. This enables stable connectivity over extended ranges while maintaining transmission quality.

The Cisco SFP-10G-BX40U-I is optimized for environments requiring dependable long-haul connectivity, making it suitable for campus networks, metropolitan deployments, and geographically distributed infrastructure.

10 Gigabit Ethernet Performance Capabilities

High-speed networking has become essential for digital transformation initiatives, cloud adoption, virtualization, and application modernization. The Cisco SFP-10G-BX40U-I provides 10 Gigabit Ethernet support that enables fast movement of data across critical infrastructure.

Organizations operating data-intensive applications require consistent bandwidth delivery and low-latency communication. This optical module contributes to maintaining operational efficiency across demanding environments.

Supporting Modern Data Traffic Requirements

Enterprise applications generate substantial network demand through virtual machines, cloud synchronization, video collaboration, analytics workloads, and storage replication.

Deploying high-capacity optical interfaces helps reduce congestion while improving application responsiveness.

High Availability Network Operations

Maintaining uptime requires dependable physical connectivity. The transceiver architecture supports stable optical communication while minimizing transmission interruptions that could impact business operations.

Continuous performance allows organizations to maintain service availability for internal users and customer-facing applications.

Low Latency Data Delivery

Fast optical transmission contributes to reduced communication delays across interconnected environments. This characteristic becomes increasingly important for environments operating large-scale workloads, virtual desktop infrastructure, and centralized computing resources.

Bidirectional Optical Technology and Fiber Optimization

A defining feature of the Cisco SFP-10G-BX40U-I is its support for bidirectional communication technology. Traditional optical deployments frequently require separate fibers for transmitting and receiving data. Bidirectional optical design enables both directions of communication over a single fiber strand.

This approach offers infrastructure optimization while reducing installation complexity.

Efficient Fiber Utilization

Fiber availability can become constrained in expanding network environments. By reducing fiber requirements, organizations can extend network capacity without large-scale recabling projects.

Efficient fiber utilization supports long-term scalability and cost management objectives.

Infrastructure Expansion Benefits

Network growth often requires balancing performance requirements with physical infrastructure limitations. Deploying bidirectional optical modules creates opportunities for capacity expansion while preserving existing fiber resources.

Reduced Cabling Complexity

Minimizing cable density improves airflow management, simplifies maintenance activities, and creates cleaner rack layouts.

Lower cable complexity also reduces the likelihood of operational errors during installation and maintenance.

LC Connector Integration for Optical Stability

The Cisco SFP-10G-BX40U-I incorporates LC optical connectivity, a widely adopted connector standard across enterprise and service provider environments.

LC connectors support compact deployment and provide reliable optical alignment for consistent signal performance.

Compact Connector Design

Network density requirements continue increasing as organizations consolidate infrastructure into centralized facilities.

Compact LC connectivity enables more interfaces within constrained physical spaces while supporting efficient cable management.

Signal Integrity and Optical Accuracy

Reliable connector performance contributes directly to optical efficiency. Accurate alignment reduces insertion loss and supports dependable communication over long distances.

Maintaining optical consistency helps ensure predictable network operation across mission-critical deployments.

Deployment Scenarios for Cisco SFP-10G-BX40U-I

The versatility of the Cisco SFP-10G-BX40U-I allows deployment across multiple networking scenarios where high-speed optical communication is essential.

Enterprise Campus Connectivity

Large organizations frequently connect multiple buildings and operational facilities using optical backbone infrastructure.

The module supports high-bandwidth communication that enables centralized resource access and streamlined administration.

Data Center Interconnect

Modern data centers depend on rapid communication between servers, storage platforms, virtualization clusters, and edge resources.

Optical connectivity supports efficient workload distribution and resilient service delivery.

Virtualized Infrastructure Environments

Virtualization technologies create dynamic traffic patterns that require stable and scalable network capacity.

Deploying 10 Gigabit optical interfaces improves overall resource accessibility and operational responsiveness.

Telecommunications and Service Provider Networks

Carrier environments require optical solutions capable of maintaining performance across extensive infrastructure footprints.

The Cisco SFP-10G-BX40U-I contributes to delivering dependable transport capabilities across distributed service architectures.

Operational Reliability and Network Efficiency

Network components must operate continuously under varying environmental and workload conditions. Reliability remains a fundamental consideration when selecting optical infrastructure.

Consistent Performance Under Load

Traffic volumes fluctuate significantly throughout operational cycles. Stable transceiver behavior ensures predictable throughput and minimizes performance degradation during peak utilization periods.

Hot-Swappable Design Benefits

Hot-swappable capability allows installation and replacement without requiring complete system shutdown.

This functionality reduces maintenance windows and supports continuous business operations.

Compatibility Considerations for Network Planning

Successful deployment depends on selecting optical modules aligned with switching platforms, routing equipment, and overall network architecture.

Planning compatibility requirements in advance reduces deployment delays and supports long-term infrastructure efficiency.

Integration Within Cisco Networking Ecosystems

Organizations implementing Cisco networking platforms often prioritize component interoperability to simplify management and maintain operational consistency.

Using compatible optical modules contributes to streamlined deployment and predictable system behavior.

Scalable Network Evolution

As infrastructure requirements expand, modular optical solutions provide a foundation for controlled growth strategies.

The Cisco SFP-10G-BX40U-I supports scalable deployment models that align with evolving business and technical objectives.

Long-Term Infrastructure Value

Investing in adaptable optical connectivity supports future network expansion while protecting existing infrastructure investments.

Organizations can maintain competitive performance levels through efficient utilization of high-speed optical technologies and flexible transceiver deployment strategies.