The JBX05879 1-meter 100GBASE-CR4 QSFP28 passive direct attach copper cable represents a cost-effective solution for enterprise and data center environments requiring high-speed network connectivity. This professionally engineered twinax copper cable operates at 100GB speeds while eliminating the expense and complexity of active electronics, making it ideal for short-reach, high-density deployments. **Key Features:** This cable delivers 100GB data transmission using passive copper construction with 30AWG twinax design. Fully Fortinet-compatible, it serves as a direct replacement for OEM part FN-CABLE-QSFP28-1. The QSFP28 to QSFP28 configuration ensures universal compatibility with standard 100GB network equipment. With a compact 1-meter length, it's perfect for inter-switch connections, server-to-switch links, and densely packed equipment layouts. **Standards & Compliance:** Engineered to IEEE 802.3bj specifications and QSFP28 MSA standards, this cable meets the highest industry performance benchmarks. RoHS and ELV compliant with TUV and UL safety certifications, ensuring environmental responsibility and workplace safety. The EU directive 2002/95/EC compliance makes it suitable for global deployments. **Technical Specifications:** 100GB data rate, 0-70°C operating temperature, 30AWG gauge for optimal signal integrity. QSFP28 copper connectors with plastic jacketing provide durability and protection. Shipped from strategic US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99. **Applications:** Ideal for data center networks, enterprise backbone connectivity, high-performance computing clusters, and storage area networks. Perfect for environments where passive DAC cables provide superior performance-to-cost ratios compared to active optics. The 1-meter length accommodates typical rack-to-rack and switch-to-server distances. **Support & Warranty:** Backed by a 90-day limited warranty ensuring peace of mind. Custom brand programming available for OEM and reseller requirements. Compatible part specifications ensure seamless integration into existing Fortinet-based network infrastructure.