Juniper EX4100/EX3400 920W AC PSU Front-to-Back | Enterprise Power

Protect access and aggregation layers with a 920 W AC power supply designed for Juniper EX4100 and EX3400 platforms. Front-to-back airflow aligns with common data center cooling patterns, helping maintain consistent thermal direction across the rack and reducing hot-spot risk in dense switch stacks. This PSU is a practical fit for teams that need replacement parity, stable power delivery, and straightforward serviceability in production networks. It is intended for environments where switch uptime matters more than feature count, and where matching the original power architecture helps preserve operational consistency. For infrastructure teams, the value is in keeping the platform supported by the correct power module rather than adapting a lower-spec substitute. That matters when the switch is carrying user access, edge aggregation, or distribution traffic and every maintenance window is measured in minutes. Choose this PSU when you need the exact fit for Juniper EX4100 and EX3400 deployments and a clean path to restore service quickly.