The JBX01235 40GBASE-LR4 QSFP+ transceiver is a purpose-built optical module designed for telecommunications professionals and enterprise network administrators requiring robust long-range connectivity solutions. **Key Features & Specifications:** This transceiver operates at 40 Gigabits per second with a transmission range of 10 kilometers over single-mode fiber infrastructure. The duplex LC/UPC connector interface provides secure, low-insertion-loss connections, while the 9/125 singlemode fiber core ensures optimal signal integrity. Compliant with IEEE 802.3ba and SFF-8436 standards, it delivers consistent performance in demanding network environments. **Technical Excellence:** Manufactured with precision-engineered metal housing and integrated laser transmitter technology, the JBX01235 is built to withstand rigorous operational conditions. Operating temperatures range from 0 to 70°C (32 to 158°F), accommodating diverse deployment scenarios from climate-controlled data centers to field installations. **Compatibility & Integration:** Seamlessly replaces OEM part numbers FG-TRAN-QSFP+LR and FN-TRAN-QSFP+LR, making it an economical upgrade path for existing Fortinet network infrastructure. Custom brand programming is available for organizations requiring specific configurations. **Compliance & Safety:** Fully RoHS and ELV compliant per EU directive 2002/95/EC. Features comprehensive laser safety certifications including Class 1 Laser classification and FDA 21CFR 1040.10 compliance, ensuring workplace safety standards. **Value & Support:** Includes 90-day limited warranty with free standard shipping on orders exceeding $99. Ships from strategically located U.S. facilities in California and South Carolina for rapid delivery. **Ideal Applications:** Perfect for data center interconnects, metropolitan area networks (MANs), long-haul fiber deployments, and enterprise backbone infrastructure requiring reliable 40GB connectivity over extended distances.