The JBX01796 10GBASE-ER SFP+ transceiver module represents enterprise-class optical connectivity designed for demanding network environments requiring extended transmission distances without signal degradation. This single-mode fiber transceiver operates at 10 Gigabit Ethernet speeds, delivering superior performance for organizations seeking to expand their network infrastructure beyond traditional reach limitations. **Key Performance Features:** This transceiver utilizes 1550nm wavelength technology optimized for long-distance transmission over single-mode fiber. With a maximum reach of 40km, it eliminates the need for costly signal regeneration equipment in extended network deployments. The 10GBASE-ER standard ensures full compatibility with existing Gigabit Ethernet infrastructure while providing tenfold bandwidth increase. **Connectivity & Compatibility:** Equipped with industry-standard duplex LC/UPC connectors, this module integrates seamlessly into existing fiber optic infrastructure. As a direct replacement for Extreme Networks 10G-LR-SFP40KM-IT modules, it provides plug-and-play compatibility without requiring firmware updates or complex configuration procedures. Full IEEE 802.3ae and SFF-8431/SFF-8472 compliance ensures interoperability across multiple vendor environments. **Build Quality & Reliability:** The metal case housing protects precision laser transmitter components from electromagnetic interference and environmental hazards. Operating reliably across an extended temperature range of -40°C to +85°C (-40°F to +185°F), this transceiver performs consistently in diverse deployment scenarios—from air-conditioned data centers to outdoor equipment enclosures. **Certifications & Compliance:** Full RoHS/ELV compliance meets EU environmental directives. Multiple safety certifications including Class 1 Laser designation, TÜV, UL/FDA compliance (21CFR 1040.10), and LN #50 7/2001 standards demonstrate commitment to user safety and regulatory adherence. These certifications provide confidence for enterprise deployments requiring strict compliance documentation. **Custom Programming Available:** Custom brand programming support enables seamless integration into white-label solutions and OEM environments. This flexibility supports resellers, integrators, and enterprises requiring specialized configurations. **Ideal Applications:** Perfect for campus interconnects, metropolitan area networks, service provider backhaul, and long-distance data center replication. Suitable for organizations upgrading from slower 1Gbps connections or requiring extended reach without intermediate regeneration equipment. Also ideal for disaster recovery scenarios requiring reliable long-distance connectivity. **Warranty & Support:** 90-day limited warranty provides peace-of-mind protection. Backed by rapid-dispatch shipping from multiple US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99. Manufactured in Vietnam and China with rigorous quality control standards.