The JBX01397 100GBASE-CWDM4 QSFP28 Transceiver represents cutting-edge optical networking technology designed for organizations requiring high-speed, long-distance data transmission. This 100Gbps module leverages coarse wavelength division multiplexing (CWDM4) technology to deliver exceptional performance over singlemode fiber infrastructure. **Technical Specifications:** Operating at 100GBASE speeds, this QSFP28 transceiver achieves transmission distances up to 2 kilometers over 9/125 singlemode fiber, ideal for connecting data centers or remote campus locations. The duplex LC/UPC connector configuration ensures reliable, high-precision signal transmission with minimal insertion loss. Dimensions of 5.0" x 4.0" x 2.0" provide compatibility with standard QSFP28 port designs. **Performance & Compatibility:** Qualified to IEEE 802.3bm and QSFP28 MSA standards, this module provides drop-in compatibility with Juniper networking equipment, specifically replacing the QSFP-100G-CWDM4-IT part number. The transceiver's 100GB data rate makes it suitable for demanding applications including server virtualization, cloud services, and high-frequency trading environments. **Durability & Safety:** Constructed with a robust metal case housing a precision laser transmitter, the JBX01397 operates reliably across temperatures from -40°C to 85°C. It meets international safety certifications including Class 1 Laser compliance, TUV, and FDA 21CFR 1040.10 requirements. Full RoHS/ELV compliance ensures environmental responsibility without compromising performance. **Value & Support:** Each unit includes a 90-day limited warranty, with custom brand programming available for enterprise deployments. Manufactured in Vietnam and China using rigorous quality standards, this transceiver is shipped with free standard shipping from multiple US locations (Danville, CA and Beaufort, SC), ensuring rapid deployment.