The JBX05558 2m 100GBASE-CR4 QSFP28 QSFP28 Arista CAB-Q-2Q-100G-2M compatible breakout cable represents an excellent choice for data center professionals seeking reliable, cost-effective high-speed connectivity. This passive direct attach copper (DAC) cable eliminates the need for active components, reducing power consumption, latency, and overall system complexity. **Technical Specifications:** Features a robust 30AWG copper twinax construction with plastic jacketing, providing excellent signal integrity over the full 2-meter span. The cable implements the 100GBASE-CR4 standard, enabling simultaneous dual-channel 100GB connectivity through dual QSFP28 connectors. Comprehensive testing ensures compliance with IEEE 802.3bj specifications and QSFP28 Multi-Source Agreement (MSA) requirements. **Performance and Reliability:** As a passive breakout solution, this cable maintains superior performance characteristics with zero active component overhead. Operating temperature range of 0-70°C accommodates diverse deployment environments from standard data centers to edge computing locations. The cable's passive design ensures longevity and eliminates concerns about power supply dependencies. **Compliance and Certifications:** Fully RoHS and ELV compliant, meeting EU Directive 2002/95/EC requirements. Safety certifications include TUV and UL approvals, demonstrating adherence to international electrical standards. Manufacturing locations in Vietnam and China ensure quality control and cost efficiency. **Ideal Applications:** Perfect for Arista switch deployments requiring flexible breakout connectivity. Suitable for campus networks, data center interconnects, and storage area networks (SANs) demanding high-speed, low-latency performance. The 2-meter length provides optimal reach for standard rack-to-rack connectivity without excessive cable runs. **Value Proposition:** Competitively priced with free standard shipping on qualifying orders. 90-day limited warranty provides peace of mind. Custom brand programming available for enterprise deployments. Ships from strategically located distribution centers in California and South Carolina for rapid delivery. This direct Arista CAB-Q-2Q-100G-2M replacement offers superior performance-to-cost ratio compared to alternative connectivity solutions while maintaining complete compatibility with existing Arista infrastructure.