Flexible Combo Design: Includes 2pcs rack shelves and joint brackets, enabling individual cantilever mounting or combining the two small cantilever shelves via brackets into a full-size shelf (19"W x 19.7"29.7"D x 1.77"H) to adapt to diverse storage needs. Versatile Mounting: Detachable ears & dual install methods. Lip up prevents falls; lip down fits deep equipmentflexible & practical. Built to lastCrafted from cold-rolled steel with welded corner reinforcements for enhanced load-bearing and anti-deformation durability.When the two cantilever rack shelves are combined into a full-size shelf via the brackets, its load-bearing capacity can go up to 300 pounds, ensuring robust support for heavy-duty storage needs. Vented Cooling: The ventilated cantilever tray design helps with equipment ventilation and heat dissipation, creating a good operating environment for IT equipment, servers, network routers, etc. Cable Management: Pre-drilled cable tie holes enable ea