SFPGLCLHSMST Startech Cisco SFP 1.25GBPS 1000Base-LX/LH 10KM Transceiver Module

Overview of the Transceiver Module

The SFPGLCLHSMST StarTech Cisco Compatible SFP 1.25Gbps 1000Base-LX/LH 10KM Transceiver Module is a high-performance small form-factor pluggable (SFP) optical networking component designed for enterprise-grade fiber connectivity. Engineered to deliver stable Gigabit Ethernet transmission over long distances, this module is widely used in data centers, enterprise switches, routers, and telecommunications infrastructure where reliable fiber optic communication is essential.

General Information

• Manufacturer: Startech 
• Part Number: SFPGLCLHSMST
• Product Type: Transceiver Module

Technical Specifications

• Data Transfer Rate: 1.25 Gbps
• Interface Type: 1000Base-SX
• Ports: Single Port
• Product Type: SFP (Small Form-Factor Pluggable)
• Designed For: Data Networking, Optical Networks
• Connectivity: 1 x LC Duplex, 1000Base-SX Network Port
• Total Ports: 1
• Connector Type: LC Duplex
• Supported Media: Optical Fiber (Multi-Mode)
• Media Type: Multi-mode Optical Fiber
• Ethernet Speed: 1.25 Gigabit Ethernet
• Network Protocol: 1000Base-SX

Environmental and Compliance Information

• Standards Compliance: MSA Compliant
• Eco-Friendly: Yes
• Certifications: RoHS, REACH

Compatibility

• Standard Compliance: MSA (Multi-Source Agreement) compatible
• Environmental Certification: RoHS (Restriction of Hazardous Substances), REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals)
• Cisco Standards: Fully matches OEM specifications for the Cisco GLC-LH-SM-RGD module.
  
• Cisco Switches: Works directly with Cisco IE3400, IE3300, and IE3200 series switches.
• Cisco Routers: Programs seamlessly into any Cisco router requiring an LX/LH transceiver.
• Multi-Vendor Use: Compatible with brands like Ubiquiti, D-Link, and Netgear.
• System Hardware: Fits into Supermicro and TP-Link network expansion slots.
• Industry Standards: Adheres completely to global MSA industry standards.

The StarTech Compatible SFP 1.25Gbps Transceiver

Built to meet IEEE 802.3z 1000Base-LX/LH standards, this SFP module supports data transfer rates of up to 1.25Gbps over single-mode fiber (SMF) and can reach distances up to 10 kilometers, making it ideal for campus networks, inter-building connectivity, and metropolitan area network (MAN) deployments.

High-Performance 1.25Gbps Gigabit Fiber Connectivity

This optical transceiver is optimized for Gigabit Ethernet applications requiring consistent bandwidth and minimal latency. Operating at a nominal data rate of 1.25Gbps, it ensures smooth packet transmission across high-demand networking environments such as cloud computing infrastructures, virtualization platforms, and large-scale enterprise networks. Its engineering ensures seamless interoperability with Cisco networking devices while also maintaining compatibility with a wide range of third-party switches that accept standard SFP modules.

Long-Distance Transmission Up to 10KM Single-Mode Fiber

One of the defining features of the SFPGLCLHSMST module is its ability to transmit optical signals over distances up to 10 kilometers using single-mode fiber cabling. This makes it a preferred choice for organizations requiring extended network reach without signal degradation. The module uses 1310nm wavelength technology, which is widely recognized for medium-to-long-range fiber optic transmission stability. This ensures minimal signal loss, reduced attenuation, and high integrity data delivery even in complex networking topologies.

Cisco Compatibility and Seamless Integration

The StarTech SFPGLCLHSMST is designed as a Cisco-compatible transceiver module, allowing it to function smoothly in Cisco switches, routers, and networking appliances that support standard SFP interfaces. This compatibility ensures that organizations can expand or replace networking components without being locked into proprietary optical hardware ecosystems.

By adhering to strict compatibility standards, this module supports plug-and-play installation, reducing configuration time and simplifying network maintenance procedures.

Enterprise-Grade Build Quality and Reliability

Designed for continuous operation in demanding environments, the SFPGLCLHSMST module is constructed using high-quality optical components and robust internal circuitry. It is engineered to withstand thermal fluctuations, electromagnetic interference, and high-density rack conditions commonly found in data centers.

The transceiver is hot-pluggable, allowing network administrators to install or replace modules without shutting down systems. This feature is critical in mission-critical environments where uptime is a top priority.

Advanced Optical Technology for Data Integrity

The module utilizes advanced optical laser technology to ensure high-quality signal transmission over fiber optic cabling. It minimizes jitter and packet loss, enabling smooth data flow across networks that require strict performance consistency, such as financial systems, enterprise databases, and real-time communication platforms.

Its built-in diagnostic monitoring capabilities (DDM/DOM support in compatible systems) allow network administrators to track optical power levels, temperature, voltage, and laser bias current for proactive maintenance and troubleshooting.

Network Scalability and Infrastructure Expansion

As organizations scale their IT infrastructure, fiber optic connectivity becomes essential for maintaining performance and reducing bottlenecks. The SFPGLCLHSMST module enables seamless scalability by providing a cost-effective way to extend network reach without replacing entire switching systems. This flexibility makes it particularly valuable for growing enterprises, cloud service providers, and telecommunications operators who need adaptable networking solutions.

Energy Efficiency and Low Power Consumption

Energy efficiency is a key consideration in modern networking environments, and this SFP transceiver is designed to operate with minimal power consumption while maintaining high performance. Its low-power architecture helps reduce overall operational costs in large-scale deployments where hundreds or thousands of modules may be in use simultaneously.

Efficient power usage also contributes to lower heat generation, which reduces cooling requirements in data centers and extends the lifespan of surrounding hardware components.

Use Cases Across Modern Networking Environments

The versatility of the SFPGLCLHSMST module allows it to be deployed across a wide variety of networking scenarios, ranging from enterprise LANs to carrier-grade WAN systems. Its standardized design ensures broad applicability and dependable performance.

Interoperability with Multi-Vendor Network Systems

In modern heterogeneous network environments, interoperability is critical. The SFPGLCLHSMST module is designed to function across multiple networking platforms, enabling organizations to maintain flexible procurement strategies and avoid vendor lock-in.

This ensures compatibility with a wide range of switches and routers that support standard SFP optical interfaces, making it a practical solution for mixed infrastructure environments.

Performance Optimization in Fiber Optic Networks

The module is optimized to maintain consistent optical performance across long-distance fiber links. It supports stable signal modulation and ensures minimal dispersion, which is essential for maintaining data accuracy over extended transmission paths.

Enterprise Networking Cost Efficiency

By offering Cisco compatibility and multi-vendor interoperability, the SFPGLCLHSMST module reduces infrastructure costs by eliminating the need for proprietary transceivers. Organizations can deploy scalable fiber solutions without investing in expensive vendor-specific hardware.

This cost-efficient approach supports long-term network sustainability and allows IT departments to optimize budgets while maintaining high performance standards.

Reliability in Critical Network Infrastructure

Critical systems require uninterrupted data flow, and this transceiver is engineered to support high availability environments. Whether deployed in financial systems, healthcare networks, or cloud platforms, it provides dependable performance under continuous operational demands.

Its robust optical design ensures consistent connectivity even in high-traffic scenarios, making it suitable for mission-critical applications where downtime is not acceptable.

Fiber Optic Standards and Engineering Excellence

The SFPGLCLHSMST module adheres to industry-standard specifications for Gigabit Ethernet fiber connectivity, ensuring full compliance with IEEE networking standards. This guarantees consistent interoperability, predictable performance, and alignment with global networking requirements.

Its engineering design emphasizes precision optical alignment, high-quality laser components, and optimized signal processing for enterprise-grade deployment reliability.

Scalable Backbone for Modern IT Infrastructure

Modern IT ecosystems rely heavily on scalable and high-speed backbone networks. This SFP transceiver serves as a foundational component for building resilient and expandable network architectures that can support increasing data demands.