The JBX05403 1-meter 40GBASE-CR4 QSFP+ passive direct attach copper cable represents an essential connectivity solution for modern data center environments requiring high-speed, cost-effective networking. Purpose-built for NVIDIA Mellanox compatible systems, this cable delivers exceptional performance and reliability at enterprise-class standards. **Key Features & Specifications:** This 40GB Ethernet cable features 30AWG twinax copper construction optimized for signal integrity and minimal attenuation over 1-meter distances. The passive DAC (direct attach copper) design eliminates the need for active signal amplification, reducing power consumption and heat generation—critical advantages in dense server environments. QSFP+ connectors provide secure, industry-standard connections compatible with leading enterprise networking equipment. **Compliance & Certification:** Fully qualified to IEEE 802.3ba and SFF-8436 specifications, the JBX05403 meets stringent regulatory requirements. RoHS, TUV, and UL certifications ensure compliance with EU Directive 2002/95/EC and global safety standards. This cable directly replaces OEM part numbers MCP1700-B001E, MC2206130-001, and MC2210130-001, ensuring seamless integration into existing infrastructure. **Ideal Applications:** Perfect for connecting switches, routers, and servers within data center rack infrastructure. The 1-meter length suits standard rack-to-rack distances and switch-to-server connections. Passive DAC technology makes this cable ideal for cost-sensitive deployments while maintaining performance standards required by mission-critical applications. **Quality Assurance:** Manufactured to exacting standards with rigorous quality control, backed by a 90-day limited warranty. Ships from US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99. Custom brand programming available for enterprise volume orders. **Operating Conditions:** Designed for standard data center environments with operating temperatures from 0-70°C (32-158°F). The robust copper construction with plastic jacketing provides durability and protection against physical stress and environmental factors typical in active network installations.