The JBX01244 40GBASE-LR4 QSFP+ optical transceiver represents a premium solution for enterprise-grade network infrastructure requiring high-speed, long-distance fiber connectivity. Specifically engineered as a compatible replacement for Ruckus E40G-QSFP-LR4 modules, this transceiver seamlessly integrates into existing network architectures while delivering exceptional performance and reliability. **Core Performance Specifications:** This transceiver operates at 40 gigabits per second (40GB/s) over single-mode fiber (9/125 micron core) with a maximum transmission distance of 10 kilometers. The duplex LC/UPC connectors provide industry-standard connectivity, ensuring compatibility with standard fiber patch panels and infrastructure. The module's QSFP+ form factor allows for high-density port deployment in modern networking equipment. **Technical Features:** Construction utilizes a precision-engineered metal case housing an advanced laser transmitter system, ensuring consistent performance and durability. The transceiver complies with IEEE 802.3ba specifications and SFF-8436 standards, guaranteeing interoperability with qualified networking equipment. RoHS and ELV directive compliance (EU 2002/95/EC) confirms environmentally responsible manufacturing practices. **Safety & Compliance:** Comprehensive certification includes Class 1 Laser compliance, TUV approval, UL/FDA certification (21CFR 1040.10), and proper harmonization coding (8544.70.0000) for international distribution. Operating temperature range of 0-70°C accommodates standard data center and network closet environments. **Operational Benefits:** The 90-day limited warranty provides peace of mind for critical network deployments. Custom brand programming availability supports enterprise branding requirements. Free standard shipping on orders exceeding $99 enhances overall value proposition for bulk deployments. **Ideal Applications:** Perfect for enterprise data center interconnects, metropolitan area networks (MANs), campus network expansions, and carrier-grade telecommunications infrastructure. Suitable for organizations requiring 40-gigabit connectivity without the cost and complexity of 100GB solutions.