This is a vented 2RU rack faceplate with 1 temperature display to monitor the temperature in your rack. This will help protect your systems by montoring the temperature. The display has its own sensor which can be positioned anywhere in the rack to help identify hot spots and ensure your rack is running cool.This faceplate can be used either by itself to provide natural ventilation in a rack or in conjunction with the 2RU Universal Cooler (CP-UC-2).