The JBX01717 10GBASE-BX20-U SFP+ transceiver module represents enterprise-grade optical networking technology designed for demanding long-distance communications. This sophisticated optical component combines cutting-edge laser transmission technology with field-proven reliability, making it the preferred choice for organizations requiring dependable 10GB connectivity over extended distances. **Technical Specifications:** This transceiver operates at 10GB data rates using single-mode fiber (SMF) with a 9/125 micron core configuration, supporting transmission distances up to 20 kilometers. The bidirectional design employs separate transmit and receive wavelengths, eliminating the need for dual fibers while maximizing bandwidth efficiency. Simplex LC/UPC connectors ensure secure, low-loss fiber connections with minimal back-reflection. **Performance & Reliability:** The JBX01717 meets all IEEE 802.3ae specifications and qualifies under SFF-8431/SFF-8472 standards, guaranteeing compatibility with enterprise networking equipment. Engineered for demanding environments, it maintains peak performance across the 0°C to 70°C operating temperature range. The metal case houses precision laser transmission components protected by comprehensive safety certifications including Class 1 Laser designation and FDA 21CFR 1040.10 compliance. **Cisco Compatibility:** As a direct equivalent to Cisco's SFP-10G-BX-U20 module, this transceiver provides plug-and-play functionality with existing Cisco infrastructure without requiring additional configuration or compatibility adjustments. Custom brand programming options are available for organizations requiring OEM branding. **Compliance & Certifications:** Full RoHS/ELV and EU directive 2002/95/EC compliance ensures environmentally responsible operation. TUV and UL certification validates safety and quality standards. The module includes a 90-day limited warranty covering manufacturing defects. **Applications:** Ideal for data center interconnects, metropolitan area networks (MANs), campus networks, and carrier-grade deployments requiring cost-effective long-distance optical connectivity. Perfect replacement for aging infrastructure or expansion of existing networks. **Shipping & Support:** Eligible for free standard shipping on orders exceeding $99, with convenient fulfillment from multiple U.S. locations ensuring rapid delivery.