The Cisco GLC-SX-MMD is a new, high-quality 1000BASE-SX Small Form-Factor Pluggable (SFP) transceiver designed for use with Multi-Mode Fiber (MMF) networks. It provides reliable Gigabit Ethernet connectivity over short distances, making it an ideal choice for campus backbones, server room connections, and intra-building links. This module operates at an 850 nm wavelength and supports a maximum data rate of 1 Gbps. When used with standard 50/125 micron MMF, it can reach distances up to 550 meters (1,804 feet), and shorter distances with legacy 62.5/125 micron MMF.

Choosing a new GLC-SX-MMD ensures that you receive a product in pristine condition with the latest manufacturing specifications. This unit is backed by the full manufacturer’s warranty, offering complete peace of mind and maximum operational life for your critical networking infrastructure. The “D” in the part number signifies that this module supports Digital Optical Monitoring (DOM), a vital feature that allows network administrators to monitor real-time performance parameters, including optical output power, optical input power, temperature, and supply voltage.

This hot-swappable SFP simplifies maintenance and upgrades, allowing you to add or replace modules without interrupting the host system’s operation. Its robust design is compliant with industry standards, guaranteeing seamless integration and reliable performance across a wide variety of Cisco switches and routers. Deploying a new GLC-SX-MMD is the best way to ensure maximum speed and diagnostic capability for your short-reach fiber connections.