NavePoint's Intelligent control Digital Temperature cooling fan unit fits standard 19-inch Rack or Cabinet applications and is the perfect solution for optimal airflow utilization. Made of quality Cold Rolled Steel and mounts easily to your 19 inch rack. Operates at a quiet noise level (from 43 - 47dB-A) making it perfect for the server room or within your office space. Pre-set a Temperature using the Digital intelligent control to reduce energy usage.