The JBX05388 1-meter 40GBASE-CR4 QSFP+ passive direct attach copper cable represents a cost-effective and reliable solution for high-speed data center connectivity. This cable is specifically designed for HPE compatibility, making it an ideal replacement for original equipment manufacturer part numbers 498385-B21 and AT095A. Product Features: This passive DAC cable utilizes premium 30AWG twinax copper conductors with plastic jacketing to ensure optimal signal integrity and durability. The QSFP+ form factor provides a compact, industry-standard connection interface suitable for modern network equipment. With a 1-meter length, it's perfectly sized for typical intra-rack connections and short-distance data center deployments. Technical Specifications: The cable meets rigorous IEEE 802.3ba standards and achieves 40GB data rate performance. Its passive design eliminates the need for active electronics, reducing power consumption and heat generation—critical advantages in densely packed data center environments. The cable operates reliably across a wide temperature range of 0-70°C (32-158°F), accommodating various data center conditions. Compliance & Certification: This product holds RoHS and ELV compliance certification, meeting EU directive 2002/95/EC requirements. It has passed TUV and UL safety certifications, ensuring reliable operation in professional networking environments. Ideal Applications: Perfect for enterprise data centers upgrading to 40GB networking infrastructure, server farms requiring reliable inter-equipment connections, and HPE system deployments. The passive construction makes it suitable for high-density switching environments where power efficiency matters. Warranty & Support: Backed by a comprehensive 90-day limited warranty. Shipped from multiple U.S. locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99, ensuring fast delivery and cost savings. Choosing this cable means investing in proven compatibility, superior build quality, and data center-grade reliability at a competitive price point.