The JBX05284 40GBASE-CR4 QSFP+ passive DAC cable represents a premium solution for organizations requiring high-speed, low-latency network connectivity. Specifically designed for Intel-compatible equipment, this 4-meter cable delivers full 40GB throughput with the simplicity and cost-effectiveness of passive direct attach technology. Key Features: This passive cable eliminates the power consumption and heat generation associated with active solutions, making it ideal for dense switch deployments and power-conscious data center environments. The 28AWG twinax copper construction provides excellent signal integrity while maintaining flexibility for installation in tight spaces. Dual QSFP+ connectors feature copper contacts rated for thousands of mating cycles, ensuring durability and reliability in production networks. Compliance & Standards: Fully qualified to IEEE 802.3ba specifications with SFF-8436 compliance, the cable meets stringent industry standards for 40 Gigabit Ethernet. RoHS, TUV, and UL certifications confirm environmental safety and electrical performance, while compliance with EU Directive 2002/95/EC ensures compatibility with international procurement requirements. Technical Specifications: Length: 4 meters | AWG: 28 | Data Rate: 40GB | Form Factor: QSFP+ | Operating Temperature: 0-70°C (32-158°F) | Replaces OEM part XLDACBL4 | Manufactured in Vietnam and China. Application & Use Cases: Ideal for hyperscale data centers, enterprise switching fabric, server-to-switch connections, and storage area network (SAN) implementations. The passive design makes it particularly suitable for temporary installations, testing environments, and applications where power delivery is unnecessary. Value Proposition: With free standard shipping on orders exceeding $99, custom branding options, and a 90-day limited warranty, this cable offers exceptional value for IT professionals seeking reliable, standards-compliant connectivity. Ships directly from Danville, CA and Beaufort, SC for rapid deployment.