The JBX05843 1.5m 100GBASE-CR4 QSFP28 Passive Direct Attach Copper Cable represents a cost-effective, high-performance solution for next-generation data center connectivity. Engineered to meet the demanding requirements of 100GB Ethernet deployments, this passive DAC cable combines superior signal integrity with exceptional durability. **Key Features & Benefits:** This cable features precision 30AWG twinax copper conductors encased in protective plastic jacketing, delivering optimal performance over 1.5-meter distances. As a passive DAC cable, it requires no external power, reducing operational costs and complexity while maintaining full 100GB throughput. The QSFP28 to QSFP28 connector configuration ensures seamless integration with Cisco switches, routers, and network infrastructure. **Technical Excellence:** Fully compliant with IEEE 802.3bj specifications and qualified to QSFP28 MSA standards, this cable undergoes rigorous testing to ensure reliability. Safety certifications include RoHS, TUV, and UL approval, with EU RoHS Directive 2002/95/EC compliance. The cable maintains optimal performance across a wide operating temperature range of 0-70°C (32-158°F), suitable for diverse deployment environments. **Compatibility & Replacement:** Direct replacement for Cisco OEM cables QSFP-100G-CU1-5M and MA-CBL-100G-150CM, this cable integrates seamlessly into existing Cisco infrastructure without compatibility concerns. Whether upgrading legacy systems or building new high-speed networks, this cable delivers plug-and-play functionality. **Ideal Applications:** Perfect for data center backbone connections, high-speed server interconnects, storage area network (SAN) implementations, and enterprise campus networking. The 1.5-meter length accommodates standard rack configurations and switch-to-switch deployments. **Warranty & Support:** Backed by a comprehensive 90-day limited warranty, with custom brand programming available for OEM integration. Ships from strategic US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders over $99, ensuring rapid deployment and cost efficiency.