Cooling (Optional): TEMPERATURE CONTROL sensor, 4 cooling fans
Cooling (Standard): Active–4 cooling fan module (all models) and Temperature Control System/Passive – air flow circulation due to perforated front door.
Features: IMPROVE AIRFLOW EFFICIENCY: Conceals empty spaces in server racks to prevent hot and cold air from mixing^^MAXIMIZE COOLING PERFORMANCE: Helps reduce recirculated hot air enhancing the cooling efficiency of your system^^EIA-310 COMPLIANT: Compatible with standard 19" racks with square round or threaded holes^^VERSATILE USE: Suitable for open frame racks closed