The JBX06408 25GBASE-CR SFP28 passive direct attach copper cable represents an economical and efficient solution for modern data center connectivity requirements. This 0.5m cable is specifically designed to support Intel-compatible network equipment while maintaining the high-speed performance demands of contemporary enterprise environments. **Key Features & Specifications:** This passive DAC cable operates at 25GB speeds and is fully qualified to IEEE 802.3by specifications, SFF-8402, and SFF-8472 standards. The 30AWG twinax copper construction with plastic jacketing provides optimal signal integrity while maintaining flexibility for installation in tight spaces. Dual SFP28 connectors enable direct, point-to-point connectivity between network switches and servers without requiring additional active electronics. **Compliance & Safety:** Fully compliant with RoHS/ELV directives (EU 2002/95/EC), TUV, and UL certifications, ensuring safe operation in regulated enterprise environments. The cable's 90-day limited warranty provides additional confidence in long-term reliability. **Performance & Applications:** Perfect for data center rack interconnections, high-speed server clustering, and storage area network (SAN) deployments where passive DAC solutions reduce power consumption and latency compared to active solutions. The short 0.5m length makes it ideal for dense rack configurations where space optimization is critical. **Compatibility:** Designed as a direct replacement for Intel OEM part number XXVDACBL50CM, ensuring seamless integration into existing Intel-based infrastructure. Operating temperature range of 0-70°C accommodates standard data center environmental conditions. **Advantages of Passive DAC Technology:** Passive direct attach cables eliminate the power consumption and heat generation associated with active electronics, making them cost-effective for short-distance connections while delivering identical performance at 25GB speeds.