1U fan tray blows cool air through your rack enclosure to keep valuable equipment functioning efficiently without costly failures. Cools rack equipment to boost system performance and avoid costly downtime High-performance 4 in. 120V fans push cool air up through rack at 864 CFM Heavy-duty cold-rolled steel construction designed to last through constant use Rear C14 inlet accepts user-supplied power cable for convenient connection to outlet Mounts easily into 1U of space in your EIA-standard 19 in. rack enclosure 2-year limited warranty