Juniper EX4100/EX3400 150W DC PSU Front-to-Back | Enterprise Power Supply

Preserve switch availability with a 150 W DC power supply designed for EX4100 and EX3400 platforms. The front-to-back airflow orientation supports predictable thermal management in rack deployments where cooling direction must align with the rest of the chassis and data center airflow plan. This PSU is built for environments that standardize on DC power and need a replacement or spare that matches the switch family without compromise. For infrastructure teams, that means faster restoration, fewer compatibility questions, and a cleaner path to maintaining uptime across access-layer deployments. When a power module is part of the service strategy, fit matters as much as wattage. This Juniper supply is specified for the EX4100 and EX3400 line, helping ensure the replacement part aligns with the platform’s electrical and mechanical requirements. It is a practical choice for organizations that value controlled airflow, consistent hardware behavior, and reduced risk during maintenance windows.