Based on this product's specifications, here are some alternatives and similar models
Fan panel Rittal 3341115 — built-in 3-fan unit, airflow 480 m³/h, white
Summary description:
Rittal 3341115 is a built-in fan panel designed for enclosure ventilation. It contains three fans delivering a combined airflow of 480 m³/h and is finished in white. Intended to provide active cooling and ventilation for 19" rack or cabinet installations, it helps maintain internal temperatures and component reliability in electrical and IT enclosures.