The JBX05723 2.5m 100GBASE-CR4 QSFP28 Passive Direct Attach Copper Cable represents a cost-effective, high-performance solution for modern data center architecture. Engineered to Arista specifications, this passive DAC cable delivers exceptional reliability and performance for organizations requiring robust 100GB network connectivity without the overhead of active optical components. **Technical Excellence** Built with premium 28AWG twinax copper construction, this cable maintains signal integrity over its full 2.5-meter length. The cable's passive design eliminates power consumption and associated heat generation, making it ideal for high-density switch deployments. Full compliance with IEEE 802.3bj specifications and QSFP28 MSA standards ensures seamless integration with Arista switching platforms and compatible third-party equipment. **Superior Construction & Safety** The copper cable features plastic jacketing for durability and protection in demanding data center environments. Safety certifications include RoHS, TUV, and UL compliance, along with adherence to EU Directive 2002/95/EC, ensuring environmental responsibility and workplace safety standards. The robust design withstands operating temperatures from 0-70°C (32-158°F), accommodating diverse deployment scenarios. **Ideal Applications** This cable excels in server-to-switch connectivity, switch fabric interconnections, and storage area network (SAN) deployments. It's particularly suited for: • High-performance computing clusters • Data center spine-and-leaf architectures • Network appliance interconnection • Low-latency trading environments • Enterprise cloud infrastructure **Cost-Effective Connectivity** As a passive DAC solution, this cable provides significant advantages over active cables and optical transceivers. It requires no external power, generates minimal heat, and offers superior performance-to-cost ratios, making it an economical choice for large-scale deployments. **Compatibility & Support** Direct Arista compatibility ensures plug-and-play functionality. The cable replaces Arista OEM part CAB-Q-Q-100G-2.5M. Custom brand programming is available for organizations with specific labeling requirements. Backed by a 90-day limited warranty and shipped from facilities in Danville, CA and Beaufort, SC, this product combines reliability with convenient logistics. Orders over $99 qualify for free standard shipping.