The JBX05751 2m Cisco Compatible 100GBASE-CR4 QSFP28 Passive Direct Attach Copper Cable represents a cost-effective, high-performance solution for enterprise and data center networking professionals seeking reliable 100GB connectivity without the complexity of active systems. **Superior Design & Construction** This premium passive DAC cable employs high-quality 28AWG twinax copper conductors encased in durable plastic jacketing, providing optimal electrical performance while maintaining flexibility for installation in space-constrained environments. The QSFP28 to QSFP28 connector configuration ensures seamless compatibility with industry-standard equipment. **Unmatched Compatibility & Standards Compliance** Fully qualified to IEEE 802.3bj specifications and QSFP28 MSA standards, this cable serves as a direct replacement for Cisco OEM part numbers QSFP-100G-CU2M and MA-CBL-100G-2M. Its universal design works across Cisco infrastructure and compatible third-party networking equipment, providing deployment flexibility. **Environmental & Safety Certifications** RoHS and TUV certified, this cable meets EU Directive 2002/95/EC requirements and UL safety standards, ensuring compliance with modern environmental regulations and workplace safety protocols. **Performance Advantages** As a passive DAC cable, it eliminates power consumption associated with active components while maintaining superior signal integrity over 2-meter distances. Ideal for high-density server interconnects, switch-to-switch connections, and storage appliance cabling where low latency and minimal heat generation are critical. **Operating Specifications** Designed for reliable operation across 0-70°C temperature ranges, this cable performs consistently in varied data center environments. Its compact 12x12x2mm dimensions facilitate installation in cable trays and equipment racks without occupying excessive space. **Backed by Warranty & Support** Every cable includes a 90-day limited warranty and ships from US-based distribution centers in California and South Carolina with free standard shipping on qualifying orders. **Perfect Applications:** - Data center switch interconnections - High-performance server connections - Storage area network (SAN) deployments - Enterprise network infrastructure upgrades - Cloud computing environments requiring 100GB bandwidth