The JBX05198 40GBASE-CR4 Direct Attach Copper (DAC) cable represents a professional-grade networking solution designed for organizations demanding high-speed, reliable connectivity in modern data center infrastructures. This 1-meter passive breakout cable serves as a drop-in replacement for Intel's X4DACBL1 part number, making it an excellent choice for businesses seeking compatible, cost-effective alternatives. **Technical Specifications & Design:** This cable features sophisticated 30AWG twinax copper construction with protective plastic jacketing, engineered to maintain signal integrity across distances up to 1 meter. The passive design eliminates the need for active electronics or external power consumption, reducing operational costs while maintaining 40Gbps data transmission rates. The QSFP+ to 4x SFP+ breakout configuration provides maximum flexibility, allowing single 40GB connections to be distributed across four 10GB SFP+ ports. **Compliance & Certifications:** Fully compliant with IEEE 802.3ba and SFF-8436 specifications, this cable meets international safety standards including RoHS, TUV, and UL certifications. The RoHS and ELV directive compliance ensures environmental responsibility and safe handling in enterprise settings. Operating temperature range of 0-70°C accommodates diverse deployment scenarios from climate-controlled server rooms to challenging industrial environments. **Applications & Use Cases:** Ideal for telecommunications infrastructure, cloud computing platforms, high-frequency trading environments, and enterprise data centers requiring reliable inter-switch connectivity. Perfect for organizations consolidating ports, upgrading legacy 10GB systems to 40GB architecture, or building redundant network paths. The Intel compatibility ensures seamless integration with existing Xeon-based systems and Intel networking equipment. **Key Benefits:** - Cost-effective alternative to active electronics - Power consumption-free operation - Plug-and-play installation - Backward compatible with Intel infrastructure - Compact, tangle-resistant design - 90-day limited warranty - Free standard shipping on qualifying orders Custom brand programming is available for organizations requiring OEM-specific configurations, making this cable suitable for resellers and systems integrators serving diverse customer bases.