The JBX01109 400GBASE-LR4 QSFP-DD Transceiver represents cutting-edge optical networking technology designed specifically for next-generation data center and enterprise network environments. With an impressive 400GB data rate capacity, this transceiver module enables ultra-high-speed communications over extended distances without signal degradation. **Key Technical Specifications:** This module utilizes QSFP-DD form factor architecture, the industry-standard for 400GB optical transceivers. The 10km single-mode fiber (SMF) capability with 9/125 core specifications ensures optimal signal transmission over longer metropolitan area network (MAN) distances. Duplex LC/UPC fiber connectors provide secure, industry-standard connectivity with minimal insertion loss. **Standards & Compliance:** Fully compliant with IEEE 802.3bs, QSFP-DD MSA, and CMIS specifications, ensuring interoperability across enterprise equipment ecosystems. The module carries comprehensive safety certifications including Class 1 Laser compliance, TUV certification, UL approval, and FDA 21CFR 1040.10 compliance. RoHS and ELV directive compliance (EU 2002/95/EC) confirms environmental responsibility and hazardous substance elimination. **Performance & Reliability:** The premium metal case with integrated laser transmitter technology ensures consistent, high-performance operation across diverse temperature environments (0-70°C operational range). Custom brand programming availability accommodates organizational branding requirements. A 90-day limited warranty provides peace of mind for critical infrastructure deployments. **Application Scenarios:** Ideal for data center interconnections, high-capacity backbone upgrades, content delivery network (CDN) infrastructure, financial institution networks, and enterprise campus networks requiring 400GB optical connectivity. Compatible with Palo Alto Networks infrastructure (PAN-QSFPDD-400GBASE-LR4 equivalent), this transceiver integrates seamlessly into existing security appliance environments. **Shipping & Support:** Shipped from strategically located U.S. facilities (Danville, CA and Beaufort, SC), this module qualifies for free standard shipping on orders exceeding $99, reducing total deployment costs.