The JUNIPER JPSU-350-AC-AFI-A is a 350W AC reverse airflow power supply designed for the Juniper Networks EX4300 series switches. This power supply provides a reliable power source for the switches, ensuring continuous operation and high availability of network services. The reverse airflow feature is particularly important in specific deployments where the cooling strategy necessitates air to flow in the opposite direction than what is standard in most equipment, effectively managing the thermal load and enhancing the overall system resilience. With a power capacity of 350 watts, this power supply unit (PSU) supports the energy needs of the EX4300 switch while facilitating redundant power configurations to safeguard against power supply failures. Its design is tailored to meet the rigorous demands of enterprise networks, ensuring that critical network infrastructure remains operational in a wide range of environmental conditions. Easy to install and replace, the JPSU-350-AC-AFI-A is an essential component for any network relying on Juniper Networks EX4300 switches for their operations.