The JBX05473 3-meter 40GBASE-CR4 QSFP+ passive direct attach copper cable represents a premium connectivity solution for modern high-speed networking environments. Specifically engineered for Extreme Networks compatibility, this cable delivers exceptional performance for mission-critical applications where reliability and speed are paramount. **Key Technical Features:** This 3-meter passive DAC cable operates at 40GB data rates, utilizing a 30AWG twinax copper conductor design optimized for minimal signal attenuation and maximum performance over short distances. The QSFP+ to QSFP+ connector configuration provides standard form-factor compatibility across leading network infrastructure platforms. Operating across temperatures from 0°C to 70°C (32°F to 158°F), this cable maintains performance stability in diverse data center environments. **Quality and Compliance:** Manufactured with precision in Vietnam and China, the JBX05473 meets stringent international standards including IEEE 802.3ba and SFF-8436 specifications. Full RoHS and ELV directive compliance (EU 2002/95/EC) ensures environmental responsibility and regulatory adherence. TUV and UL safety certifications provide additional assurance of quality and safety standards. **Application Benefits:** Ideal for server-to-switch connections, storage area networks (SANs), and high-performance computing clusters, this passive cable eliminates external power requirements while delivering exceptional reliability. The 3-meter length accommodates typical rack-to-rack or switch-to-server distances without signal degradation. Its compatibility with part numbers 40G-DACP-QSFP3M, 10313, 40GB-C03-QSFP, and AA1404031-E6 makes it an excellent drop-in replacement for existing Extreme Networks deployments. **Value Proposition:** Offering enterprise-grade performance without premium pricing, this cable delivers outstanding cost-effectiveness for organizations scaling high-speed network infrastructure. The 90-day limited warranty provides confidence in purchase, while free standard shipping on orders exceeding $99 enhances overall value. Whether you're upgrading existing systems or building new infrastructure, the JBX05473 delivers reliable, standards-compliant connectivity for demanding network applications.