The JBX01249 40GBASE-PLRL4 QSFP+ transceiver represents a premium solution for enterprises requiring high-speed, long-distance optical connectivity. Designed to meet the rigorous demands of modern data centers and campus networks, this module delivers exceptional performance and reliability. Key Technical Specifications: This transceiver operates at 40 Gbps using the PLRL4 standard, supporting transmission distances up to 1.4 kilometers over single-mode fiber (9/125µm). The 1310nm wavelength provides optimal performance for SMF deployment, while the MTP/MPO connector standard ensures compatibility with high-density optical patch panels and modern network infrastructure. The QSFP+ form factor allows for compact, space-efficient module placement in switches and routing equipment. Performance & Reliability: Manufactured to IEEE 802.3ba specifications, the JBX01249 guarantees interoperability with standards-compliant equipment. The metal case construction with advanced laser transmitter technology provides durability and heat dissipation. Comprehensive safety certifications—including Class 1 laser designation and TUV/UL/FDA compliance per 21CFR 1040.10—ensure safe operation in any environment. The module maintains consistent performance across the full operating temperature range of 0-70°C (32-158°F). Compliance & Sustainability: Full RoHS and ELV directive compliance (EU 2002/95/EC) demonstrates environmental responsibility. The transceiver is manufactured in ISO-certified facilities in Vietnam and China, ensuring quality consistency. Compatibility & Integration: Perfectly compatible with Arista networking equipment, the JBX01249 serves as a direct replacement for Arista QSFP-40G-PLRL4 modules. Custom brand programming is available for OEM applications, providing flexibility for enterprise deployments. Warranty & Support: Backed by a 90-day limited warranty, with free standard shipping on orders exceeding $99, shipped from distribution centers in Danville, CA and Beaufort, SC. Ideal Applications: Data center backbone connectivity, campus network interconnects, high-speed LAN extensions, and enterprise switching fabrics requiring 40Gbps performance over moderate distances.