The JBX05780 3-meter 100GBASE-CR4 QSFP28 passive direct attach copper cable represents the ideal solution for organizations requiring high-bandwidth, low-latency connectivity within data center environments. As a drop-in replacement for Arista CAB-Q-Q-100G-3M specifications, this cable seamlessly integrates into existing infrastructure while delivering exceptional performance at competitive pricing. **Technical Specifications & Performance:** This passive DAC cable utilizes premium 28AWG twinax copper construction optimized for 100GB data transmission over 3-meter distances. The QSFP28 form factor on both ends provides universal compatibility with modern high-speed network equipment. Meeting IEEE 802.3bj and QSFP28 MSA standards, the cable delivers reliable, consistent performance without signal degradation. The 0-70°C operating temperature range suits diverse data center environments, from cooled server rooms to equipment-dense installations. **Compliance & Safety:** Fully compliant with RoHS Directive 2002/95/EC and certified to UL standards, this cable meets stringent environmental and safety requirements. The EU ELV directive compliance ensures no hazardous substances compromise performance or environmental responsibility. TUV certification provides additional assurance of quality and reliability. **Cost-Effective Advantages:** Unlike active DACs or optical solutions, passive direct attach copper cables require no external power, reducing deployment costs and eliminating potential points of failure. The 3-meter length optimally accommodates standard data center rack spacing and switch-to-storage configurations. Custom brand programming is available for OEM integrators and large-scale deployments. **Applications & Use Cases:** Ideal for connecting Arista switches to storage arrays, servers, and networking infrastructure requiring 100GB throughput. Particularly valuable in virtualization environments, backup systems, and high-frequency trading platforms where latency and reliability are critical. The passive technology makes it suitable for continuous operation in 24/7 data center deployments. **Shipping & Support:** Shipped from US locations (Danville, CA and Beaufort, SC) for rapid delivery. Qualifies for free standard shipping on orders exceeding $99. The 90-day limited warranty provides peace of mind, with responsive customer support available for technical assistance. Invest in proven, standards-compliant connectivity that delivers enterprise-grade performance at passive DAC pricing.