Kendall Howard 1U Vented 4-Point Adjustable Rack Shelves are the most versatile vented adjustable shelf available. This shelf adjusts from 22” to 36” and therefore it is no longer necessary to figure out the depth of the rails in the rack. This shelf will work with every 19" EIA compliant 4-post rack or server cabinet on the market today. The Kendall Howard 1U Vented 4-Point Adjustable Shelf allows the full depth of the rack to be used because the entire shelf plate adjusts rather than just the mounting flanges. The Unique ventilation pattern allows for maximum airflow. They are in stock and ship same day!