Know your gear
Filler panels are used to control the air flow inside of server racks. Without the use of filler panels, the hot exhaust air from the servers can be re-circulated through the server and significantly reduce the cooling efficiency of the system. Installations that have an open frame racks, closed server cabinets, or a 2Post rack can benefit from the use of filler panels. In any installations the filler panels also help give your rack a clean and professional look.