The JBX02201 1000BASE-BX40-U SFP transceiver represents a robust solution for organizations requiring reliable, long-distance optical connectivity. This extended-reach module excels in scenarios where traditional short-reach transceivers fall short, delivering 1 Gbps throughput across 40 kilometers of single-mode fiber infrastructure. **Key Features & Specifications:** Designed with industrial-grade components, this SFP module operates seamlessly across a wide temperature range of -40 to 85°C (-40 to 185°F), making it suitable for both indoor data centers and outdoor installations. The simplex LC/UPC fiber connection accommodates standard network equipment configurations, while the 9/125µm single-mode fiber core ensures optimal signal integrity over extended distances. **Bidirectional Technology:** Leveraging wavelength division multiplexing (1310nm and 1550nm), the transceiver enables simultaneous two-way communication over a single fiber strand. This BiDi technology exceeds standard IEEE 802.3ah specifications, providing enhanced performance for metropolitan networks, campus backbone connections, and disaster recovery links. **Compatibility & Integration:** This module is directly compatible with Cisco GLC-BX40-U-I transceivers, facilitating straightforward integration into existing Cisco networking environments without requiring additional configuration or specialized equipment. **Quality & Compliance:** Manufactured to exacting standards, the JBX02201 features a metal case construction with integrated laser transmitter technology. It meets SFF-8472 qualification standards and carries multiple safety certifications including Class 1 Laser compliance, TUV, UL, and FDA 21CFR 1040.10 approval. Full RoHS and EU directive 2002/95/EC compliance ensures environmental responsibility. **Reliability & Support:** Backed by a 90-day limited warranty and custom brand programming capabilities, this transceiver delivers enterprise-grade reliability. Qualified for extended-reach bidirectional deployment, it's engineered for mission-critical network applications requiring maximum uptime and performance. With free standard shipping on orders over $99 and availability from multiple US fulfillment locations, the JBX02201 offers exceptional value for network infrastructure upgrades and expansions.