The CISCO N2200-PAC-400W-B is a 400W power supply unit designed for the Cisco Nexus 2200 Fabric Extender series, featuring port side intake for efficient cooling. This PSU ensures consistent and reliable power delivery to support the complex operations of the Nexus 2200 FEX, bolstering network performance and availability. Its design addresses the cooling requirements of high-density rack environments, promoting optimal airflow and reducing thermal stress on the system. The unit’s 400W capacity is engineered to meet the energy demands of the fabric extender, supporting seamless connectivity and high-speed data transmission. With hot-swap capabilities, it allows for easy replacement or upgrade with minimal impact on network operations, essential for maintaining continuous system uptime in dynamic data center environments.