DS-SFP-FC4G-LW Cisco 4 GB Fiber Channel Transceiver Module

Cisco DS-SFP-FC4G-LW 4Gb Fibre Channel SFP Transceiver

The Cisco DS-SFP-FC4G-LW is a dependable 4Gb Fibre Channel Small Form-Factor Pluggable (SFP) transceiver engineered for enterprise storage networking environments. Designed for long-distance fiber optic communication, this hot-swappable optical module delivers stable, high-speed connectivity between Fibre Channel switches, storage arrays, and SAN infrastructure.

Product Overview

• Manufacturer: Cisco
• Model Number: DS-SFP-FC4G-LW
• Product Category: Fibre Channel Transceiver Module
• Form Factor: SFP (Mini-GBIC)
• Technology: 4Gb Fibre Channel
• Installation: Hot-pluggable Plug-in Module

Technical Specifications

Optical Interface

• Connector Type: Dual LC Single-Mode Fiber
• Fiber Media: Single-Mode Optical Fiber (SMF)
• Optical Standard: Long Wavelength (LW)
• Transmission Technology: Fiber Optic

Performance Features

• Supports data transfer speeds up to 4Gbps
• Built for Fibre Channel Storage Area Networks (SANs)
• Provides reliable long-distance optical communication
• Maintains consistent signal integrity for mission-critical environments
• Designed for continuous enterprise network operation

Key Features

• Compact SFP (Mini-GBIC) design saves valuable switch port space.
• Hot-swappable architecture enables replacement without powering down network equipment.
• Optimized for Cisco Fibre Channel switches and compatible storage platforms.
• High-performance optical transmission minimizes latency and packet loss.
• Ideal for expanding or upgrading Storage Area Network infrastructure.
• Durable construction supports demanding enterprise deployments.

Applications

Enterprise Storage Networking

The Cisco DS-SFP-FC4G-LW transceiver is an excellent choice for organizations deploying Fibre Channel Storage Area Networks where dependable, high-speed data transport is essential.

• Storage Area Networks (SAN)
• Enterprise Data Centers
• Disaster Recovery Sites
• Storage Replication Connections
• Mission-Critical Business Applications
• Server-to-Storage Connectivity

Compatibility Benefits

Specifically developed for Cisco networking hardware, this optical module offers seamless integration with supported Fibre Channel switches while delivering dependable interoperability throughout enterprise storage environments.

• Compatible with Cisco Fibre Channel switches
• Supports LC single-mode fiber cabling
• Reliable optical connectivity for SAN deployments
• Simple installation with plug-and-play functionality

Reliable Enterprise Performance

Organizations requiring uninterrupted storage communication can rely on the Cisco DS-SFP-FC4G-LW for consistent throughput, excellent optical performance, and dependable long-range Fibre Channel connectivity.

Highlights

• 4Gb Fibre Channel bandwidth
• SFP Mini-GBIC form factor
• Single-mode fiber support
• Dual LC optical interface
• Hot-pluggable installation
• Long-wavelength optical transmission
• Enterprise-grade Cisco reliability
• Designed for high-availability storage networks

Cisco DS-SFP-FC4G-LW 4GB SFP Mini-GBIC Transceiver Module

The Cisco DS-SFP-FC4G-LW 4GB Fiber Channel Transceiver Module is an enterprise-grade optical transceiver designed to deliver reliable long-distance Fibre Channel connectivity for storage area network (SAN) infrastructures. Built to meet the stringent performance and reliability standards required in data centers, this Small Form-Factor Pluggable (SFP) transceiver supports high-speed Fibre Channel communications over single-mode fiber while maintaining excellent signal integrity across extended distances. Organizations that depend on uninterrupted storage connectivity choose this optical module for its proven compatibility, exceptional durability, and seamless integration with Cisco networking and storage platforms.

Modern enterprise storage environments demand dependable optical communication between storage arrays, Fibre Channel switches, blade servers, directors, and backup infrastructure. The Cisco DS-SFP-FC4G-LW module fulfills these requirements by enabling stable 4 Gbps Fibre Channel transmission over long-reach single-mode fiber cabling. It supports mission-critical applications where low latency, minimal packet loss, and continuous availability are essential for business continuity.

As organizations expand their storage infrastructure across multiple buildings, campus environments, disaster recovery facilities, and geographically separated data centers, long-wave optical transceivers become increasingly important. The Cisco DS-SFP-FC4G-LW provides the optical performance required to maintain high-quality communication across these longer fiber runs without compromising storage performance or reliability.

Enterprise-Class Long-Wave Fibre Channel Connectivity

Designed specifically for Fibre Channel SAN deployments, the Cisco DS-SFP-FC4G-LW module uses long-wave laser technology optimized for single-mode fiber applications. Unlike short-wave optical modules intended for shorter distances, long-wave transceivers enable storage devices and networking equipment to communicate across significantly greater distances, making them suitable for enterprise campuses, metropolitan storage networks, and disaster recovery implementations.

The module operates within the industry-standard SFP form factor, allowing administrators to install or replace optical transceivers without replacing entire networking devices. This modular architecture simplifies upgrades, maintenance, inventory management, and future scalability while minimizing downtime during hardware replacements.

Storage administrators frequently deploy the Cisco DS-SFP-FC4G-LW in environments requiring consistent throughput, dependable connectivity, and continuous SAN availability. Its enterprise-focused engineering supports demanding workloads including virtualization, cloud infrastructure, enterprise databases, backup solutions, large-scale storage replication, and business continuity systems.

Optimized for Storage Area Networks

Unlike standard Ethernet optical modules, Fibre Channel transceivers are engineered specifically for storage networking applications. The Cisco DS-SFP-FC4G-LW supports deterministic data delivery, predictable latency, and highly reliable optical communication that storage infrastructures require for mission-critical applications.

Enterprise SAN deployments rely on continuous communication between switches, storage arrays, tape libraries, and host bus adapters. Every component within the Fibre Channel fabric contributes to overall storage performance, making the optical transceiver an important element in maintaining operational efficiency.

Long-Reach Optical Performance

The long-wave optical design enables the module to operate across extended distances using single-mode fiber. This capability makes it ideal for organizations connecting multiple server rooms, data centers, campus facilities, or disaster recovery sites while maintaining stable Fibre Channel communication.

Extended optical reach reduces deployment limitations by allowing infrastructure planners greater flexibility when designing physical network layouts. Equipment placement can be optimized for power, cooling, redundancy, and operational efficiency without being constrained by short-distance optical limitations.

Key Features of Cisco DS-SFP-FC4G-LW

4 Gbps Fibre Channel Support

The Cisco DS-SFP-FC4G-LW supports 4 Gigabit Fibre Channel communications, providing sufficient bandwidth for enterprise storage workloads including transactional databases, virtual machine clusters, centralized storage arrays, file services, enterprise resource planning platforms, backup infrastructure, and disaster recovery replication.

Small Form-Factor Pluggable Design

The standardized SFP interface enables convenient installation into compatible Cisco Fibre Channel switches, directors, and storage networking equipment. The compact form factor also allows high-density switch deployments where numerous optical interfaces are required within limited rack space.

Hot-Swappable Capability

One of the significant operational advantages of the Cisco DS-SFP-FC4G-LW is hot-swappable functionality. Administrators can replace defective modules or upgrade optical interfaces without shutting down the entire switch or disrupting unrelated SAN connections. This capability contributes to higher network availability and simplified maintenance procedures.

Single-Mode Fiber Compatibility

The module operates with single-mode optical fiber, enabling long-distance transmission while maintaining excellent signal quality. Single-mode fiber infrastructure is commonly used in enterprise campuses, telecommunications facilities, and inter-building connectivity where extended transmission distances are required.

Long-Wavelength Laser Technology

The integrated long-wave laser provides stable optical transmission over supported distances. Precision optical components ensure consistent communication even in demanding enterprise environments where reliability is essential.

Benefits for Enterprise Storage Infrastructure

Improved Business Continuity

Business continuity depends heavily on resilient storage infrastructure. The Cisco DS-SFP-FC4G-LW supports reliable SAN connectivity between primary and secondary storage resources, allowing organizations to implement effective redundancy, failover strategies, and disaster recovery architectures.

Reduced Downtime

Reliable optical communication minimizes unexpected connectivity failures that could interrupt storage services. High-quality Cisco transceivers contribute to continuous operation, helping organizations avoid costly downtime and maintain uninterrupted business operations.

Simplified Infrastructure Expansion

As storage requirements increase, organizations can expand Fibre Channel fabrics without extensive redesign. Additional switches, storage arrays, backup appliances, and compute resources can be integrated into existing infrastructures using compatible optical modules.

Excellent Compatibility

Cisco engineers optical modules to integrate seamlessly with supported Cisco storage networking equipment. This compatibility reduces deployment complexity while ensuring optimal operational performance across the Fibre Channel environment.

Applications Across Enterprise Environments

Data Centers

Enterprise data centers use Cisco DS-SFP-FC4G-LW modules to establish reliable optical links between Fibre Channel switches, storage arrays, blade chassis, and storage directors. These optical connections support continuous access to centralized storage resources while maintaining predictable application performance.

Virtualized Infrastructure

Virtualization platforms generate substantial storage traffic due to multiple virtual machines accessing shared storage simultaneously. The Cisco DS-SFP-FC4G-LW enables dependable communication within Fibre Channel fabrics supporting virtual server environments.

Cloud Infrastructure

Private cloud deployments frequently rely on centralized SAN architectures for scalable storage management. Long-wave Fibre Channel transceivers facilitate communication between compute clusters and storage platforms while supporting enterprise-grade performance expectations.

Enterprise Databases

Database servers require reliable storage connectivity with low latency and consistent throughput. Cisco Fibre Channel transceivers help maintain uninterrupted communication between database systems and storage arrays handling mission-critical business data.

Backup Solutions

Enterprise backup environments transfer large volumes of information between production storage and backup repositories. High-quality Fibre Channel optics contribute to efficient backup operations while supporting scheduled backup windows.

Disaster Recovery

Organizations implementing disaster recovery strategies often connect geographically separated storage environments using long-distance optical infrastructure. The Cisco DS-SFP-FC4G-LW supports these deployments by enabling reliable Fibre Channel communication over single-mode fiber.

Supported Networking Environments

Enterprise SAN Fabrics

The module integrates into Fibre Channel fabrics supporting enterprise storage communication across multiple switches and directors. SAN administrators value dependable optical components that maintain stable connectivity throughout the storage infrastructure.

Storage Arrays

Enterprise storage arrays rely on Fibre Channel interfaces for high-performance communication with servers and storage switches. Cisco optical modules facilitate these connections while supporting demanding storage workloads.

Blade Server Platforms

Blade infrastructures consolidate numerous servers into compact chassis that connect to centralized storage. Fibre Channel transceivers provide the optical communication required for efficient storage access within these high-density computing environments.

High-Density Storage Networks

Large organizations often deploy hundreds of Fibre Channel ports across multiple switches. The standardized SFP form factor simplifies installation, replacement, inventory management, and maintenance in these environments.

Advantages of Cisco Optical Modules

Enterprise Reliability

Cisco optical transceivers undergo extensive testing to ensure compatibility, durability, and consistent performance. Their enterprise-focused design supports continuous operation within demanding production environments.

Quality Manufacturing

Precision manufacturing techniques contribute to stable optical performance throughout the module's operational life. High-quality optical components minimize transmission errors and improve long-term reliability.

Predictable Performance

Storage administrators require consistent network behavior under varying workloads. Cisco Fibre Channel transceivers deliver predictable optical characteristics that help maintain stable SAN performance.

Reduced Operational Risk

Using vendor-supported optical modules reduces compatibility concerns while simplifying troubleshooting, maintenance, firmware validation, and long-term infrastructure planning.

Technical Characteristics

Optical Transmission

The Cisco DS-SFP-FC4G-LW employs long-wave laser technology specifically designed for single-mode optical fiber transmission. This design supports long-distance Fibre Channel communication while maintaining excellent signal integrity.

Industry-Standard Interface

The SFP interface provides standardized connectivity across compatible Fibre Channel networking equipment, allowing simplified deployment and replacement procedures.

High-Speed Storage Communication

The module supports storage networking workloads requiring dependable bandwidth for enterprise applications, virtualization platforms, database servers, backup systems, and centralized storage arrays.

Compact Physical Design

The small footprint enables network switches to accommodate numerous optical interfaces without increasing equipment size, making it suitable for space-constrained enterprise racks.

Deployment Scenarios

Primary Data Center Connectivity

Organizations commonly deploy the Cisco DS-SFP-FC4G-LW to interconnect Fibre Channel switches supporting centralized storage within primary data centers. Reliable optical communication ensures continuous access to business-critical applications.

Campus Storage Networking

Large campuses containing multiple buildings often require storage connectivity across extended distances. Single-mode fiber combined with long-wave transceivers enables efficient SAN communication throughout campus infrastructure.

Remote Equipment Rooms

Enterprises operating multiple equipment rooms benefit from long-distance optical connectivity that supports centralized storage management while maintaining consistent Fibre Channel performance.

Storage Replication Infrastructure

Many organizations replicate storage between separate facilities to improve data protection. Long-wave Fibre Channel optics contribute to reliable communication supporting replication technologies.