The JBX01455 100GBASE-LR4 QSFP28 Transceiver is a premium optical networking component designed to meet the demands of modern high-speed data transmission. This transceiver delivers exceptional performance for enterprise networks, data centers, and service provider environments requiring reliable 100 gigabit per second connectivity. **Technical Specifications:** Operating at 100Gb/s, the JBX01455 transmits data over singlemode fiber at distances up to 10 kilometers, making it suitable for metropolitan area network (MAN) applications and extended campus interconnects. The transceiver utilizes industry-standard 9/125 micron singlemode fiber with duplex LC/UPC connectors, ensuring compatibility with existing infrastructure. Housed in a rugged metal case with integrated laser transmitter, this device meets stringent safety certifications including Class 1 Laser, UL/FDA, and TUV approvals. **Compatibility & Standards:** Fully compatible with Extreme Networks 100G-LR4-QSFP10KM equipment, the JBX01455 is qualified to IEEE 802.3bm specifications and QSFP28 Multi-Source Agreement (MSA) standards. It serves as a direct replacement for multiple OEM part numbers including 100G-LR4-QSFP10KM, 10403, and 100G-QSFP28-LR4-10KM, providing flexibility for network upgrades and expansions. **Environmental Compliance:** RoHS and ELV compliant, this transceiver meets EU Directive 2002/95/EC requirements, supporting sustainable IT operations. The operating temperature range of 0-70°C (32-158°F) ensures reliable performance across diverse deployment environments. **Advantages Over Alternatives:** Unlike shorter-reach options, the 10km LR4 variant eliminates the need for optical amplification in many deployment scenarios, reducing cost and complexity. Custom brand programming is available for OEM integrations. **Service & Support:** Ship from strategically located facilities in Danville, CA and Beaufort, SC with free standard shipping on orders exceeding $99. Backed by a 90-day limited warranty, this transceiver provides peace of mind for business-critical applications. **Installation & Maintenance:** Duplicate LC/UPC connectors enable straightforward hot-swappable installation in QSFP28 ports. Maintain optimal performance by protecting connectors from dust and environmental contamination through proper fiber management practices. Regular inspection of fiber connections ensures consistent signal quality and network reliability over time.