EX3400 150W DC Power Supply, front-to-back airflow (power cord needs to be ordered separately)
Part Number: JPSU-150-DC-AFO
The DC power supplies in EX3400 switches are hot-insertable and hot-removable field-replaceable units (FRUs): You can install them without powering off the switch or disrupting the switching function. The switch is shipped with one power supply installed.