The JBX01223 is a professional-grade 40GBASE-LR4 QSFP+ optical transceiver engineered for mission-critical network infrastructure. As a direct replacement for Brocade 40G-QSFP-LR4 modules, it provides seamless integration into existing enterprise environments. **Key Features:** Delivers 40Gbps bandwidth over 10-kilometer single-mode fiber spans, optimizing long-distance data center connectivity and campus networks. The Duplex LC/UPC connectors offer standard industry compatibility and reliable connections. Utilizing 9/125 single-mode fiber core technology ensures minimal signal degradation and maximum transmission reliability. **Technical Excellence:** Qualified to IEEE 802.3ba and SFF-8436 specifications, this module meets the highest industry standards. Its metal case construction with integrated laser transmission technology provides durability and performance. Operating temperature range of 0-70°C accommodates diverse deployment environments. **Compliance & Safety:** Fully RoHS/ELV compliant and manufactured in Vietnam and China with rigorous quality control. Class 1 Laser certified with TUV and UL/FDA (21CFR 1040.10) approvals ensure safe operation in enterprise settings. **Ideal Applications:** Perfect for data centers, enterprise networks, telecommunications infrastructure, and high-speed backbone networks requiring reliable 40G connectivity. Compatible with Brocade switches and systems. **Value Proposition:** Backup compatibility certified, 90-day limited warranty, and custom brand programming available. Free standard shipping on orders exceeding $99. Ships from Danville, CA and Beaufort, SC for rapid delivery to enterprise customers nationwide.