The JBX06455 2.5m Cisco Compatible 25GBASE-CR SFP28 Passive Direct Attach Copper Cable represents an excellent solution for organizations seeking reliable, cost-effective high-speed networking infrastructure. This purpose-built passive DAC (Direct Attach Cable) is specifically designed to meet the demanding requirements of modern data center environments where speed, efficiency, and reliability are paramount. **Key Features and Specifications:** This cable features premium 30AWG twinax copper construction, providing superior signal integrity and minimal attenuation over its 2.5-meter length. The dual SFP28 connectors are precision-engineered to deliver consistent 25GB data rates, making this cable ideal for server-to-switch, switch-to-switch, and storage interconnect applications. The passive design eliminates the need for external power, reducing operational costs and simplifying deployment logistics. **Standards Compliance and Certification:** Fully qualified to IEEE 802.3by specifications, the JBX06455 meets or exceeds industry-standard performance benchmarks. RoHS and ELV compliance ensures environmental responsibility, while TUL and UL safety certifications guarantee user protection. The cable adheres to SFF-8402 and SFF-8472 standards, ensuring compatibility across certified Cisco equipment. **Applications and Use Cases:** Ideal for data center upgrades, virtualized environments, and high-performance computing clusters, this cable supports mission-critical applications requiring low-latency connectivity. The 2.5m length accommodates typical rack-to-rack distances while maintaining signal quality. It directly replaces Cisco OEM part number SFP-H25G-CU2-5M. **Operating Conditions:** Rated for 0°C to 70°C operating temperatures, this cable performs reliably in standard data center environments. The compact footprint minimizes cable clutter while maintaining robust copper construction for durability. **Quality Assurance:** Backed by a 90-day limited warranty, the JBX06455 provides peace of mind for enterprise deployments. Free standard shipping on orders over $99 and availability from multiple fulfillment centers ensure fast delivery and service reliability. Custom brand programming is available for volume OEM orders.