The JBX05551 1m Cisco QSFP28 100GBASE-CR4 DAC breakout cable represents a cost-effective, reliable solution for enterprises and data centers seeking to maximize network infrastructure efficiency. This specialized passive breakout cable converts a single 100GB QSFP28 connection into two independent 50GB QSFP28 connections, enabling flexible network architecture design without sacrificing performance. **Technical Excellence** Built to exacting standards, this cable features high-purity copper conductors in a 30AWG configuration, delivering superior signal integrity and minimal insertion loss. The robust plastic jacketing protects against environmental stresses while maintaining flexibility for tight equipment placements. Operating across the industrial temperature range of 0-70°C, it maintains consistent performance in demanding data center environments. **Compliance & Certification** Fully compliant with RoHS Directive 2002/95/EC, TUV and UL certifications ensure safety and environmental responsibility. Qualification to IEEE 802.3bj specifications and QSFP28 MSA standards guarantees compatibility with enterprise-grade networking equipment from leading manufacturers. **Superior Value Proposition** As a passive breakout solution, this DAC cable eliminates power consumption concerns and active component latency, providing pure signal transmission at the speed of light through copper. The 1-meter length strikes an optimal balance between reach and space efficiency in modern high-density rack environments. **Application Scenarios** Perfect for: data center spine-leaf architectures, storage area network (SAN) deployments, high-performance computing clusters, and enterprise network upgrades requiring flexible bandwidth management. The Cisco compatibility ensures seamless integration with existing infrastructure investments. **Reliability & Support** Backed by a 90-day limited warranty and supported by expert technical staff, this cable includes free standard shipping on orders exceeding $99. Ships from strategically located U.S. distribution centers in California and South Carolina for rapid delivery. Manufactured in Vietnam and China using quality-controlled processes, each cable undergoes rigorous testing to ensure performance meets or exceeds Cisco OEM specifications. Invest in proven, standards-compliant connectivity that maximizes your network infrastructure investment while reducing total cost of ownership.