DS-SFP-FC4G-SW Cisco 4GBPS Fibre Channel Transceiver Module

Cisco DS-SFP-FC4G-SW 4Gbps Fibre Channel Transceiver Module

The Cisco DS-SFP-FC4G-SW is a high-performance Fibre Channel transceiver engineered to deliver stable, high-speed optical connectivity for enterprise storage area networks (SANs). Built for Cisco networking platforms, this hot-swappable SFP module provides dependable communication while supporting multiple Fibre Channel transmission speeds for maximum deployment flexibility.

Product Overview

• Manufacturer: Cisco
• Part Number: DS-SFP-FC4G-SW
• Device Type: Fibre Channel Transceiver Module
• Form Factor: Small Form-Factor Pluggable (SFP)
• Network Technology: Fibre Channel

Key Technical Specifications

High-Speed Fibre Channel Performance

• Maximum transfer speed of 4 Gbps
• Backward compatible with 2 Gbps Fibre Channel
• Supports legacy 1 Gbps Fibre Channel environments
• Optimized for mission-critical storage networking

Interface and Connectivity

Network Port Configuration

• One Fibre Channel interface
• LC Duplex optical connector
• Automatic speed detection for simplified deployment
• Reliable optical signal transmission

Supported Fiber Media

The DS-SFP-FC4G-SW is compatible with commonly deployed multimode optical fiber types, providing installation flexibility across enterprise environments.

• 62.5 µm multimode optical fiber
• 50 µm multimode optical fiber
• Ideal for short-distance Fibre Channel links

Compatible Cisco Platforms

Supported Cisco MDS Switch Modules

This Fibre Channel SFP transceiver is designed to operate seamlessly with a variety of Cisco MDS 9000 Series switching modules.

• Cisco DS-X9112 Switching Module
• Cisco DS-X9124 Switching Module
• Cisco DS-X9148 Switching Module
• Cisco DS-C9020-20K9 Switching Module
• Additional Cisco MDS 9000 Series compatible platforms

Business Advantages

Reliable Optical Connectivity

• Consistent Fibre Channel performance
• Stable data transmission
• Reduced signal degradation
• Enterprise-grade reliability

Flexible Network Integration

• Simplifies network migration
• Supports mixed-speed SAN environments
• Hot-swappable design for easy replacement
• Compatible with modern and legacy Fibre Channel networks

Applications

Enterprise Storage Networking

• Storage Area Networks (SAN)
• Enterprise data centers
• Business-critical storage infrastructure
• Server-to-storage connectivity
• High-availability Fibre Channel deployments

Key Benefits at a Glance

• Supports Fibre Channel speeds up to 4 Gbps
• Backward compatible with 2 Gbps and 1 Gbps networks
• LC Duplex optical interface
• Works with 50 µm and 62.5 µm multimode fiber
• Compatible with Cisco MDS 9000 Series switches
• Reliable enterprise-grade optical connectivity
• Ideal for data centers and SAN deployments

Cisco DS-SFP-FC4G-SW 4Gbps FC Transceiver Module

The Cisco DS-SFP-FC4G-SW 4Gbps Fibre Channel Transceiver Module category is designed for organizations that require dependable, high-performance optical connectivity for Fibre Channel Storage Area Networks (SANs). These Small Form-Factor Pluggable (SFP) optical transceivers are engineered to provide stable short-wave optical communication between Fibre Channel switches, storage arrays, servers, blade systems, and SAN infrastructure. As enterprise storage environments continue to demand higher reliability, lower latency, and improved scalability, Cisco 4Gb Fibre Channel SFP modules remain an essential component for maintaining uninterrupted data transmission across mission-critical storage networks.

Organizations operating enterprise databases, virtualization platforms, cloud infrastructure, disaster recovery solutions, and backup systems often depend on Fibre Channel technology due to its superior reliability and deterministic performance. The Cisco DS-SFP-FC4G-SW module supports these demanding environments by providing a trusted optical interface capable of delivering consistent throughput with minimal packet loss and extremely low latency.

This category includes genuine Cisco Fibre Channel transceivers, compatible replacement modules, refurbished options, and enterprise-grade optical interfaces suitable for upgrading or maintaining existing SAN deployments. These modules are commonly installed in Cisco MDS Fibre Channel switches, compatible storage networking equipment, and various enterprise storage platforms that utilize standardized SFP interfaces.

Purpose of Cisco DS-SFP-FC4G-SW Fibre Channel Transceivers

Unlike traditional Ethernet transceivers, Fibre Channel optical modules are specifically optimized for storage traffic. The Cisco DS-SFP-FC4G-SW module enables reliable communication between storage devices where uninterrupted data transfer is essential. Enterprise applications require guaranteed delivery of storage traffic without congestion, making Fibre Channel one of the most dependable storage networking technologies available.

The primary role of this optical module is to convert electrical Fibre Channel signals generated by networking hardware into optical signals that travel through multimode fiber optic cables. At the receiving end, another matching transceiver converts the optical signal back into electrical data, allowing storage devices and switches to communicate seamlessly across the SAN.

Designed for Enterprise Storage Networking

Enterprise storage networks differ significantly from conventional LAN environments. Storage traffic requires predictable latency, extremely low error rates, and continuous availability. Cisco DS-SFP-FC4G-SW transceivers are engineered specifically for Fibre Channel applications where reliability is significantly more important than simply achieving high bandwidth.

These optical modules provide consistent signal quality across supported transmission distances while maintaining compatibility with standardized Fibre Channel protocols.

Reliable Optical Communication

Optical Fibre Channel modules eliminate many limitations associated with copper connectivity. Fiber optic transmission is resistant to electromagnetic interference, supports longer cable distances, reduces signal degradation, and enables cleaner communication between enterprise storage devices.

Key Features of Cisco DS-SFP-FC4G-SW Modules

4Gbps Fibre Channel Performance

The Cisco DS-SFP-FC4G-SW module supports Fibre Channel data rates up to 4.25 Gbps, making it ideal for enterprise storage deployments built around 4Gb Fibre Channel infrastructure. While newer SAN technologies have introduced higher speeds, many organizations continue operating 4Gb Fibre Channel networks due to their proven stability, long service life, and compatibility with legacy enterprise storage hardware.

Short-Wave Optical Technology

The "SW" designation indicates short-wave laser technology operating around the 850nm wavelength. This wavelength is specifically intended for multimode fiber optic cabling commonly deployed within enterprise data centers.

Short-wave optics deliver an excellent balance between performance, installation cost, and transmission distance, making them suitable for rack-to-rack, row-to-row, and equipment room interconnections.

Hot-Pluggable Design

One of the major advantages of Cisco SFP technology is hot-swappable functionality. Network administrators can replace or install transceivers without shutting down the switch or interrupting other operational ports. This minimizes maintenance windows while improving operational efficiency.

Benefits of Fibre Channel Storage Networking

Consistent Storage Performance

Unlike shared Ethernet environments where storage traffic competes with application traffic, Fibre Channel networks are dedicated exclusively to storage communication. This separation improves consistency and helps maintain predictable application response times.

Extremely Low Latency

Storage workloads require immediate access to data. Cisco Fibre Channel transceivers help reduce latency by enabling optimized SAN communication with minimal transmission delays.

High Reliability

Enterprise organizations depend on Fibre Channel because it has earned a reputation for outstanding reliability. Cisco optical modules contribute to this reliability through high manufacturing standards, strict compatibility testing, and dependable optical performance.

Scalable Infrastructure

Organizations can gradually expand storage networks by adding additional Fibre Channel switches, storage arrays, and servers while maintaining compatibility across existing infrastructure.

Applications of Cisco DS-SFP-FC4G-SW Modules

Enterprise Data Centers

Large enterprise data centers utilize Fibre Channel for connecting storage arrays to compute resources. Cisco optical modules enable high-speed communication that supports mission-critical workloads including ERP systems, financial databases, healthcare applications, and enterprise virtualization.

Storage Area Networks

The most common deployment scenario for the Cisco DS-SFP-FC4G-SW module is within Storage Area Networks. SANs separate storage traffic from production LAN traffic, improving both security and performance.

Virtualization Platforms

Virtual machine environments require shared storage accessible by multiple hosts. Fibre Channel connectivity provides the bandwidth and stability needed for live migration, clustering, and centralized storage management.

Database Servers

High-performance database servers frequently rely on Fibre Channel storage because databases perform continuous read and write operations that demand reliable low-latency connectivity.

Disaster Recovery Systems

Business continuity solutions often incorporate Fibre Channel infrastructure for storage replication, backup operations, and disaster recovery sites where uninterrupted storage communication is essential.

Compatible Cisco Infrastructure

Cisco MDS Fibre Channel Switches

The Cisco DS-SFP-FC4G-SW module is commonly deployed with Cisco MDS storage networking switches. These enterprise-class switches form the backbone of many SAN environments, offering advanced management, zoning, redundancy, and high availability features.

Blade Server Environments

Blade chassis equipped with Fibre Channel connectivity can utilize these optical modules to establish high-speed storage links between compute resources and centralized storage arrays.

Enterprise Storage Systems

Many storage vendors support standardized Fibre Channel interfaces, allowing Cisco-compatible SFP modules to operate alongside enterprise storage systems from multiple manufacturers when appropriate compatibility requirements are met.

Advantages of Short-Wave Optical Modules

Cost-Effective Data Center Connectivity

Short-wave multimode optics generally provide lower infrastructure costs compared to long-wave single-mode solutions, especially for typical enterprise data center distances.

Excellent Signal Quality

Modern multimode fiber provides outstanding signal integrity for short-distance SAN deployments while minimizing transmission errors.

Simple Deployment

Most enterprise facilities already contain multimode fiber cabling, allowing Cisco DS-SFP-FC4G-SW modules to integrate into existing infrastructure with minimal additional installation costs.