Extreme Networks GM-4SI 45110 Alpine 3800 Series 4-Port 1000Base-SX MT-RJ Module

Overview
The Extreme Networks 45110 Alpine 3800 Series 4-Port 1000Base-SX MT-RJ Module (GM-4SI) delivers reliable short wavelength fiber connectivity for high-density campus and data center deployments. Designed to fit into the Alpine 3800 chassis, this hot-swappable module provides four independent 1000Base-SX ports using MT-RJ connectors, enabling easy integration with multimode fiber infrastructure while maintaining low latency and high performance.

Key Features

• Four 1000Base-SX ports with MT-RJ connectors for multimode fiber
• Hot-swappable design for zero-downtime maintenance
• Compact form factor optimized for the Alpine 3800 platform
• Supports data rates up to 1 Gbps per port
• LED status indicators for link and activity monitoring
• Backwards compatible with legacy multimode fiber cabling

Technical Specifications

• Model/Part Number: GM-4SI
• Port Type: 1000Base-SX MT-RJ
• Number of Ports: 4
• Maximum Data Rate: 1 Gbps per port
• Supported Fiber Types: OM1, OM2, OM3, OM4 multimode fiber
• Wavelength: 850 nm
• Connector Type: MT-RJ (LC style) with keyed alignment
• Power Consumption: Less than 5 W total
• Operating Temperature: 0 to 40 degrees C
• Dimensions: Standard 1U module, fits Alpine 3800 slot

Applications
The GM-4SI module is ideal for campus networks, enterprise data centers, and high-performance computing clusters where short-reach fiber links are required. It is well suited for connecting switches, servers, and storage arrays in environments that demand low latency, high reliability, and easy scalability. Use this module to extend network reach in dense rack deployments, to provide redundant fiber paths for disaster recovery, or to upgrade legacy copper connections to fiber without replacing existing cabling infrastructure.