The JBX05675 4-meter 100GBASE-CR4 QSFP28 Passive Direct Attach Copper Cable represents the optimal solution for organizations deploying high-speed network infrastructure requiring reliable 100GB connectivity. This premium twinax copper cable is specifically engineered to support Fortinet-compatible networking equipment while maintaining exceptional performance standards. **Technical Excellence:** This cable meets IEEE 802.3bj specifications and QSFP28 MSA standards, ensuring compatibility with enterprise-grade networking infrastructure. The 26AWG gauge twinax design provides superior electrical characteristics with minimal signal degradation over the 4-meter span. Operating temperatures from 0-70°C accommodate diverse deployment environments, from climate-controlled data centers to telecom closets. **Compliance & Certification:** Fully RoHS and EU directive 2002/95/EC compliant, this cable meets stringent environmental and safety standards. TUV and UL certifications confirm adherence to international safety protocols, providing peace of mind for mission-critical deployments. **Performance Benefits:** As a passive direct attach copper solution, this cable requires no external power, eliminating additional infrastructure requirements and reducing total cost of ownership. The copper connectors ensure reliable electrical connections while the plastic jacketing provides durability against environmental factors and physical handling. **Ideal Applications:** • Data center switch-to-switch connections • Server-to-storage direct connectivity • High-performance computing cluster networking • Enterprise network backbone infrastructure • Fortinet FortiSwitch and FortiGate deployments **Shipping & Support:** Shipped from strategic US locations (Danville, CA and Beaufort, SC), this cable qualifies for free standard shipping on orders exceeding $99. The 90-day limited warranty provides protection and customer confidence. Custom brand programming is available for organizations requiring specialized labeling. **Compatibility:** Directly replaces Fortinet OEM part FN-CABLE-QSFP28-4, making upgrades and replacements seamless. The universal QSFP28 connector standard ensures broad compatibility across compatible networking equipment from multiple manufacturers. This high-performance cable delivers the reliability, compliance, and performance critical infrastructure demands, making it an essential component for modern enterprise and data center networking environments.