The JBX05333 0.5m 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents the ideal connectivity solution for modern high-speed networking environments. Engineered to Fortinet compatibility specifications, this passive DAC (Direct Attach Copper) cable delivers robust 40Gbps performance while eliminating the power consumption and heat generation associated with active optical cables. **Key Features & Specifications:** This twinax cable features premium copper construction with a durable plastic jacket, 30AWG gauge conductors, and QSFP+ connectors on both ends. Fully qualified to IEEE 802.3ba and SFF-8436 standards, it guarantees interoperability with Fortinet network equipment and other compliant infrastructure. The 0.5-meter length is optimized for short-reach connections in cabinet-to-cabinet and card-to-card applications without signal degradation. **Compliance & Reliability:** The cable meets all major safety and environmental standards including RoHS/ELV compliance and carries UL and TUV certifications. This ensures safe operation in enterprise environments while maintaining commitment to environmental sustainability. Operating temperature range of 0-70°C accommodates typical data center conditions. **Cost & Performance Benefits:** As a passive cable, it requires zero power consumption compared to active alternatives, reducing energy costs and cooling requirements. The direct copper connection minimizes latency, critical for time-sensitive applications including high-frequency trading, cloud computing, and real-time data processing. The compact design makes it ideal for densely populated switch ports. **Perfect For:** Data center operators, network administrators, and enterprise IT teams seeking reliable, cost-effective 40GB connectivity. Replaces OEM part numbers FN-CABLE-QSFP+50CM and SP-CABLE-FS-QSFP+50CM. **Logistics:** Ships from Danville, CA or Beaufort, SC locations with free standard shipping on orders exceeding $99. Custom brand programming available for bulk orders. Backed by a comprehensive 90-day limited warranty.