PROCOOL AVX-280T-1U Silent AV cabinet cooling fan system / 1U Rack Mount Temperature Controller/Auto Speed control fans with mounts Silent Temp controlled operation with high airflow, ideal for home theater cabinets and components (2) PROCOOL SXT80 Temperature controlled variable speed fans with 1U Rack Mount temp display/fan controller Airflow: 14-32 CFM per fan (28-64 CFM combined) Noise: 9-14 dBA per fan (9-17 dBA Combined) 1U Rack Mount Programmable Fan controller with temp display controls when fans turn on and off 2 Year Warranty - Built by hand in the USA Procool model SXT80 fans are temperature controlled automatic on/off with variable speed, ranging from 1200 RPM to 2400 RPM at full speed Included in all AV Kit Series Large Blue LED display (Switchable- on or off) Switch between Fahrenheit and Celsius Temp range from 32-212?F (0-100 Celsius) ON/TC Mode Switch (back) Switches from thermal control to always on 24&#034; thermal probe 1U rackmount controller panel saves valuable rack spaces 19&#034; x 1.75&#034; x 1.5&#034;