The Black Box LFP403 SFP module is a compact and reliable transceiver designed for optical and data networking environments. It supports 100Base-X Fast Ethernet over single-mode or multi-mode optical fiber via a single LC connector. This module is engineered to deliver stable signal transmission for short-to-medium range network links, making it suitable for enterprise server rooms, campus networks, and industrial control systems. Its hot-swappable design allows for easy installation and replacement without powering down connected equipment, reducing downtime during maintenance or upgrades. Constructed with a durable metal housing, the LFP403 provides effective heat dissipation and electromagnetic interference shielding, contributing to long-term operational stability. The module operates at a wavelength of 1310 nm or 1550 nm depending on the fiber type, ensuring consistent performance across various network topologies. It complies with industry-standard MSA (Multi-Source Agreement) specifications, guaranteeing interoperability with compatible switches, routers, and media converters from major vendors. With a typical transmission distance of up to 2 km over multi-mode fiber and 10 km over single-mode fiber, this module addresses the needs of both local area network extension and last-mile connectivity. The optical transceiver integrates advanced digital diagnostics monitoring (DDM) capabilities, enabling real-time tracking of parameters such as temperature, supply voltage, laser bias current, and received optical power. This feature assists network administrators in proactive maintenance and fault detection. The unit’s low power consumption (typically under 1 W) minimizes thermal load in densely populated patch panels.

Additionally, the module supports full-duplex operation, optimizing throughput for bandwidth-sensitive applications like VoIP, video surveillance, and data transfer. Designed for ease of deployment, the LFP403 features a robust latch mechanism that secures the LC connector firmly, preventing accidental disconnection. Its plug-and-play nature requires no additional configuration, simplifying integration into existing network infrastructure. The module is RoHS compliant and manufactured under strict quality control processes, ensuring consistent performance across multiple units. Whether used in a backbone link, server-to-switch connection, or fiber-to-the-desk deployment, this SFP module provides a cost-effective solution for upgrading or expanding copper-based networks to fiber optics. The Black Box LFP403 offers a practical balance of functionality and affordability. While specific pricing is not listed in our catalog, it represents a very affordable investment for businesses seeking to improve network reliability and speed. By replacing legacy copper transceivers with this optical module, users can achieve longer cable runs, greater immunity to electrical interference, and enhanced data security. Its compatibility with a wide range of networking equipment makes it a versatile addition to any IT procurement strategy.