The JBX01718 is a premium 10GBASE-BX20-U SFP+ optical transceiver engineered for professionals who demand reliable, high-speed network connectivity. As a direct replacement for Cisco's SFP-10G-BX20U-I, this module provides seamless integration into existing Cisco infrastructure without compatibility concerns. **Performance & Specifications:** Operating at 10 gigabits per second, this transceiver excels in long-distance networking applications with its impressive 20km transmission capability over standard single-mode fiber (SMF) with 9/125 core specifications. The simplex LC/UPC connector design ensures optimal light transmission with minimal signal loss, critical for maintaining data integrity across extended distances. **Design & Durability:** Constructed with a robust metal case and integrated laser transmitter, the JBX01718 withstands the rigors of professional network environments. Its compact SFP+ form factor allows flexible deployment in high-density network switches and routers. The device maintains full functionality across an extended temperature range of -40 to 85°C, accommodating both air-conditioned data centers and outdoor installations. **Compliance & Safety:** Fully compliant with IEEE 802.3ae standards and multiple international certifications including RoHS/ELV, Class 1 Laser classification, TUV, and FDA 21CFR 1040.10 regulations. This comprehensive certification portfolio ensures safe operation and environmental responsibility. **Ideal Applications:** Perfect for enterprise data centers, telecommunications networks, campus connectivity, and long-distance carrier deployments. The 20km range eliminates the need for costly optical amplification in many scenarios, reducing total cost of ownership. Whether upgrading existing infrastructure or building new networks, this transceiver provides cost-effective, proven reliability. **Support & Warranty:** Backed by a 90-day limited warranty and available custom brand programming for enterprise customers. Free standard shipping on orders over $99, with fulfillment from convenient U.S. locations in California or South Carolina.