The JBX01359 100G-4WDM-40 QSFP28 Transceiver represents cutting-edge optical networking technology designed for demanding enterprise and telecommunications applications. This high-capacity module delivers 100 gigabits per second (100G) data rates over 40 kilometers of singlemode fiber, making it ideal for long-distance inter-datacenter connections and metropolitan area networks. **Key Technical Features:** This transceiver operates on standard 9/125 singlemode fiber with duplex LC/UPC connectors, ensuring compatibility with existing fiber infrastructure. The module is fully compliant with IEEE 802.3bm and QSFP28 MSA standards, guaranteeing interoperability and reliability. Its wavelength-division multiplexing (4WDM) technology optimizes bandwidth utilization across diverse network topologies. **Performance & Reliability:** Operating reliably from -40°C to 85°C, the JBX01359 performs consistently in diverse environmental conditions. Featuring a robust metal case with integrated laser transmitter, this module delivers superior signal integrity and protection against electromagnetic interference. The device includes forward error correction (FEC) capabilities for enhanced data accuracy over extended distances. **Compliance & Safety:** Fully RoHS and ELV compliant, this transceiver meets EU Directive 2002/95/EC environmental standards. Comprehensive safety certifications including Class 1 Laser, TÜV, UL, and FDA (21CFR 1040.10) approval demonstrate our commitment to quality and user protection. **Juniper Compatibility:** This module directly replaces the Juniper QSFP-100G-4WDM40-I, making upgrades and replacements seamless. Custom brand programming is available for OEM applications, providing flexibility for specialized deployments. **Ideal Applications:** • Data center interconnections • Long-distance WAN links • Metropolitan area networks (MANs) • Carrier and service provider networks • High-speed backbone connections **Value Proposition:** With free standard shipping on orders over $99 and a 90-day limited warranty, the JBX01359 offers exceptional value for enterprises requiring reliable, standards-based optical connectivity. Ships from multiple U.S. locations for faster delivery.