High-speed 400G passive direct attach copper (DAC) cable designed for seamless connectivity between QSFP112 ports. This 0.5m (1.6ft) cable supports 4x100G PAM4 signaling, delivering reliable performance for data center and enterprise networking applications. Generic compatible construction ensures broad device compatibility. Passive design eliminates the need for external power, reducing complexity and cost while maintaining signal integrity over short distances. Ideal for high-density switch interconnections and server-to-switch deployments requiring low-latency, cost-effective solutions.