The JBX01794 10GBASE-ER SFP+ optical transceiver is a premium-quality network module engineered for high-speed, long-distance data transmission in professional networking environments. Designed specifically for 10 Gigabit Ethernet applications, this module operates at 1550nm wavelength to deliver exceptional performance across single-mode fiber infrastructure. Key Technical Specifications: This transceiver supports 10GB data rates with a maximum transmission distance of 40 kilometers over standard single-mode fiber cabling. The 1550nm wavelength is optimized for Extended Range (ER) applications, providing superior optical performance and minimal signal degradation over long distances. The duplex LC/UPC connectors offer industry-standard connectivity with excellent return loss characteristics, ensuring signal integrity and minimizing insertion loss. Compatibility and Standards: The JBX01794 is fully compatible with Extreme Networks 10309 equipment, making it an excellent alternative to proprietary OEM modules while maintaining complete system interoperability. It meets all relevant IEEE 802.3ae standards, SFF-8431, and SFF-8472 specifications, ensuring seamless integration into existing network architectures. Quality and Safety: Constructed with a durable metal case housing precision laser transmitter technology, this module is built to withstand the rigors of professional networking environments. It carries comprehensive safety certifications including Class 1 Laser designation, TUV, UL, and FDA compliance (21CFR 1040.10), plus RoHS and ELV environmental certifications for sustainable operation. Performance Characteristics: Operating across a temperature range of 0-70°C (32-158°F), the module delivers consistent performance in varied environmental conditions. The single-mode fiber designation ensures low chromatic dispersion, supporting longer transmission distances with minimal signal degradation compared to multimode alternatives. Applications and Use Cases: Ideal for metropolitan area networks, campus interconnects, disaster recovery links, and data center replication scenarios requiring extended reach. Perfect for organizations upgrading to 10G infrastructure while leveraging existing Extreme Networks equipment investments. Customization and Support: Custom brand programming is available for organizations requiring proprietary labeling. The 90-day limited warranty provides peace of mind, with convenient shipping from US-based distribution centers. Free standard shipping applies to orders exceeding $99, reducing total cost of ownership. This transceiver represents an optimal balance of performance, reliability, and value for network professionals seeking dependable 10G connectivity over extended distances.