---
manufacturer: Juniper
model: EX4100-FAN-AFO
part_number: 660-156849
comments: |
  fan with front-to-back airflow

  [Juniper EX4100 Data Sheet](https://www.juniper.net/content/dam/www/assets/datasheets/us/en/switches/ex4100-line-of-ethernet-switches-datasheet.pdf)