Pair of Extra Strong axial fans made to keep air flow and your equipment at low temperature Fits all standard 19” network cabinets; AC 110V Fan; 220/250CFM Airflow; 4000rpm; 59dBA, AC cable 6.2ft and Ground wire attached Network Cabinet Fan Applications -fan cooler panels,trays,server, media cabinets,overheat protection Included: Metal Finger Guard; Quick Mount Silicone Rubber Screws – Rivets; (Dual Ball Bearing for Horizontal or Vertical Mount) Dimensions 4.75”x4.75″ – 4 inch between holes