The JBX01422 100GBASE-ER4-Lite QSFP28 Transceiver represents a sophisticated solution for modern data center and telecommunications infrastructure requiring high-capacity, long-distance fiber optic transmission. Designed to meet the demanding requirements of 100 Gigabit Ethernet applications, this module delivers exceptional performance and reliability. **Technical Specifications:** Operating at 100 Gbps, the JBX01422 extends transmission distances to 40 kilometers over standard single-mode fiber (9/125µm core), utilizing duplex LC/UPC connectors for secure, low-loss connectivity. The integrated Forward Error Correction (FEC) mechanism ensures data integrity across extended distances, while the compact QSFP28 form factor (5x4x2 inches) fits seamlessly into existing network infrastructure. **Performance & Reliability:** Manufactured with a durable metal case and precision laser transmitter assembly, this transceiver maintains stable operation across a wide temperature range (0-70°C / 32-158°F). Compliance certifications include IEEE 802.3bm, QSFP28 MSA, SFF-8665, RoHS/ELV directives, and comprehensive safety standards including Class 1 laser certification and FDA 21CFR 1040.10 compliance. **Compatibility & Integration:** The module is fully compatible with Extreme Networks equipment and serves as a direct replacement for part number 100G-ER4LT-QSFP40KM. Custom brand programming is available to match your organization's specifications and requirements. **Use Cases:** Ideal applications include enterprise data center expansion, campus area networks, metro network connectivity, and telecommunications provider infrastructure. The 40km reach eliminates expensive regeneration equipment for most metropolitan deployments. **Shipping & Support:** Available with free standard shipping on orders exceeding $99, dispatched from Danville, CA or Beaufort, SC locations. Each unit includes a 90-day limited warranty ensuring customer confidence and investment protection.