Improve the organization and appearance of your rack with this planking panel Compatible with 19 in 2-post and 4-post server racks Easy installation 2U panel / Server Rack Filler Panel / Panel for server racks / Server Rack Access Panel 2U rack panel Improve the airflow in your server rack with a panel that helps guide the airflow along the back of your rack, instead of passing through your equipment Filling in the spaces when no other rack mounted equipment is needed