The JBX01374 100GBASE-BX30-U QSFP28 optical transceiver represents a premium solution for high-speed network connectivity requiring extended transmission distances. This module is purpose-built to deliver reliable 100 gigabit per second (100GBASE) data rates over singlemode fiber infrastructure spanning up to 30 kilometers, offering significant cost advantages over shorter-reach alternatives without compromising performance. **Key Technical Specifications:** This transceiver operates at 100GB data rates using the QSFP28 form factor, the industry standard for 100G optical modules. The simplex LC/UPC fiber connection ensures single-direction transmission with optimal optical performance and minimal signal degradation. The 9/125 singlemode fiber core configuration provides excellent dispersion characteristics essential for long-distance, high-bandwidth applications. **Performance and Reliability:** Engineered to IEEE 802.3bm specifications and QSFP28 MSA standards, this module delivers consistent, predictable performance across diverse network environments. The metal case construction with integrated laser transmitter technology provides exceptional durability and thermal stability. Operating temperature range of 0-70°C accommodates standard data center cooling requirements and outdoor network deployments. **Compliance and Safety:** Full RoHS and ELV directive compliance ensures environmental responsibility while meeting stringent safety standards including Class 1 Laser certification, TUV approval, and FDA 21CFR 1040.10 compliance. This comprehensive certification portfolio makes the module suitable for regulated industries and enterprise deployments. **Cisco Compatibility:** Directly replaces Cisco QSFP-100G-BX30U-S OEM components, providing seamless integration with existing Cisco network infrastructure without requiring system modifications or reconfiguration. **Flexibility and Support:** Custom brand programming is available for organizations requiring proprietary identification. The 90-day limited warranty provides peace of mind investment protection, while free standard shipping on orders exceeding $99 reduces deployment costs. Shipped from strategically located U.S. facilities (Danville, CA and Beaufort, SC) ensures rapid delivery for time-sensitive network upgrades.