The wall mount rack system is now available in 6U, 18U, 21U, and 24U arriving fully assembled with a swing kit, vented top and base, a reversible, tempered glass door, and convenient screw-on cable management panels. We even added a slight notch to the side of the reversible swing kit to fit a deep socket wrench, and hardened steel hinge pins that make closing the swing kit easy while providing sag resistance. These four new models aren't the only ones with new & improved features; we've made the same updates across the entire Strong Wall Mount Rack System line! Check out the new products.