The JBX05090 represents a cost-effective and efficient solution for modern data center infrastructure requiring high-speed 400GB connectivity. As a passive Direct Attach Copper (DAC) cable, this product eliminates the need for active electronics, reducing power consumption and heat generation while delivering exceptional reliability. **Key Technical Features:** This 2.5-meter QSFP-DD cable is specifically engineered to meet the demanding 400GBASE-CR8 specification, providing seamless compatibility with NVIDIA Mellanox equipment and infrastructure. The 26AWG twinax copper construction ensures optimal signal transmission with minimal crosstalk and signal degradation. Operating across the full 0-70°C temperature range, this cable adapts to diverse data center environments from climate-controlled facilities to edge computing locations. **Performance & Standards Compliance:** Qualified to IEEE ETC 400GBASE-CR8 specifications and QSFP-DD MSA (Multi-Source Agreement) standards, the JBX05090 delivers verified performance metrics. Full RoHS and ELV compliance ensures environmentally responsible operation, while TUV and UL certifications provide third-party validation of safety standards compliance. **Installation & Deployment:** The compact QSFP-DD to QSFP-DD connector configuration enables straightforward installation in dense switch environments. The 2.5-meter length accommodates typical top-of-rack (ToR) and end-of-row (EoR) deployment scenarios, eliminating unnecessary cable slack while maintaining required installation flexibility. **Reliability & Support:** Backed by a comprehensive 90-day limited warranty and available custom programming options, the cable integrates seamlessly into both standardized and customized network architectures. Direct replacement compatibility with OEM part numbers 980-9I35T-00W02A and MCP1660-W02AE26 ensures drop-in installation for upgrade scenarios. **Ideal Applications:** Perfect for high-performance computing clusters, cloud infrastructure expansion, AI/ML workloads, and enterprise data center upgrades requiring immediate 400GB connectivity deployment without the complexity of active optical solutions.