The JBX01445 100GBASE-LR4 QSFP28 transceiver is a premium optical transmission module engineered for high-speed, long-distance networking applications. Delivering exceptional 100 gigabit per second (100GB) data rates, this transceiver leverages advanced laser technology to transmit low-voltage network signals across 10-kilometer reaches of single-mode fiber infrastructure. **Key Technical Features:** This QSFP28 form factor module utilizes 9/125 micrometer single-mode fiber with duplex LC/UPC connectors, ensuring secure, industry-standard connections. The LR4 designation indicates long-reach capability optimized for metro and regional network deployments. Manufactured to exacting standards, the module features a robust metal case protecting the integrated laser transmitter and receiver components. **Compatibility & Standards:** The transceiver is fully compatible with Arista networking equipment, specifically replacing OEM part numbers QSFP-100G-LR4 and QSFP-100G-LRL4. It qualifies to IEEE 802.3bm specifications and QSFP28 MSA standards, ensuring interoperability with certified network infrastructure. **Safety & Compliance:** Extensive certifications validate this module's safety and quality: Class 1 Laser designation, TUV and UL approval, FDA 21CFR 1040.10 compliance, and RoHS/ELV directive adherence. These certifications guarantee safe operation in professional environments while meeting international environmental standards. **Performance Parameters:** Operating temperature range of 0-70°C (32-158°F) accommodates diverse deployment scenarios. The transceiver is available with custom brand programming for OEM requirements, enabling seamless integration into proprietary equipment. **Value Proposition:** With 90-day limited warranty coverage and free standard shipping on orders exceeding $99, the JBX01445 delivers exceptional value for network infrastructure upgrades and expansions. Sourced from verified manufacturing facilities in Vietnam and China, this module combines reliability, performance, and cost-effectiveness for enterprise-grade networking solutions.