The JBX05434 2m Cisco Compatible 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents a robust solution for modern data center and enterprise network infrastructure requirements. This specialized networking component delivers exceptional performance while maintaining cost efficiency through passive direct attach copper technology. Technical Specifications & Performance: This cable operates at 40GB data rates, utilizing 30AWG gauge copper conductors wrapped in twinax configuration to ensure signal integrity and minimize crosstalk. The QSFP+ form factor connectors provide secure, reliable connections between compatible network equipment. Compliant with IEEE 802.3ba standards and SFF-8436 specifications, this cable meets the rigorous demands of modern high-speed networking applications. Key Advantages: Passive DAC cables eliminate active electronic components, resulting in lower operational costs, reduced heat generation, and simplified deployment compared to active optical cables. The 2-meter length accommodates typical rack-to-rack and switch-to-server configurations in data center environments. With comprehensive certifications including RoHS, TUV, and UL compliance, this cable meets international safety and environmental standards. Application Scenarios: Ideal for hyperscale data centers, enterprise network backbone connections, server cluster interconnects, and high-performance computing facilities. This cable excels in environments requiring direct copper connections between QSFP+-equipped switches, routers, and network interface cards. Operational Reliability: Rated for operating temperatures between 0°C and 70°C (32°F to 158°F), ensuring stable performance across diverse environmental conditions. The durable plastic jacketing protects copper conductors from damage while maintaining flexibility for installation in constrained spaces. Compatibility & Replacement: Certified Cisco compatible, replacing OEM part numbers QSFP-H40G-CU2M and MA-CBL-40G-2M. Sourced from reliable manufacturing locations in Vietnam and China, backed by a comprehensive 90-day limited warranty. Ships promptly from distribution centers in Danville, CA and Beaufort, SC, with free standard shipping on orders exceeding $99. Customization Options: Custom brand programming is available for organizations requiring specific branding or labeling requirements, supporting bulk deployment scenarios and standardized infrastructure management.