Tecmojo newly upgraded 4 Post Server Rack Shelf has three specifications, equipped with adjustable brackets, which can be selected according to different rack depths. Increased the number and area of ventilation holes, aiming to avoid problems caused by equipment overheating. At the same time, based on user feedback and opinions, network rack shelf offers Velcro cable ties and anti-slip stops as gifts to help solve cable management and enhance equipment stability. The 242lbs weight capacity is designed specifically for professionals and heavy equipments. Available in 13.8", 21.6", 27.6" depth.