The JBX06454 2.5m Arista-compatible 25GBASE-CR SFP28 passive Direct Attach Copper (DAC) cable represents a cost-effective, high-performance solution for modern data center networking infrastructure. This passive DAC eliminates the need for active electronics, reducing power consumption and heat generation while maintaining exceptional signal integrity across short to medium distances. **Technical Specifications & Performance:** Designed to IEEE 802.3by standards, this cable delivers reliable 25 gigabit ethernet transmission with minimal latency. The 30AWG twinax copper construction provides superior electromagnetic shielding and signal fidelity, ensuring stable connections in demanding enterprise environments. With operating temperatures ranging from 0-70°C (32-158°F), the cable performs reliably across diverse deployment scenarios. **Compatibility & Integration:** Specifically engineered for Arista switches and compatible infrastructure, this cable serves as a direct replacement for Arista's CAB-S-S-25G-2.5M model. The SFP28 connector form factor enables seamless integration with existing network equipment without requiring adapter modules or additional hardware. **Compliance & Quality Assurance:** Fully RoHS and EU directive 2002/95/EC compliant, ensuring environmental responsibility and regulatory adherence. Safety certifications include RoHS, TUV, and UL standards. The cable is backed by a comprehensive 90-day limited warranty, providing peace of mind for enterprise deployments. **Applications:** Ideal for: - Data center rack-to-rack connectivity - High-speed cluster computing interconnects - Enterprise network infrastructure upgrades - Low-latency trading environments - Cloud service provider facilities **Advantages Over Alternatives:** Passive DAC cables outperform active alternatives by requiring no power consumption, generating minimal heat, and offering superior reliability with fewer failure points. The 2.5m length provides optimal flexibility for typical data center layouts while maintaining signal integrity. **Shipping & Support:** Enjoy free standard shipping on orders exceeding $99 from our U.S. distribution centers in Danville, CA and Beaufort, SC. Custom brand programming is available for OEM and enterprise bulk orders.