Toolless Mini Rack, 6U-Sized Device Rack With A 24-Port Blank Patch Panel That Can Be Assembled Without Tools. The Toolless Mini Rack (U Rack 6U Tl) Is A Heavy-Duty, 6U-Sized Device Rack That Can Be Easily Assembled Without Tools. The U Rack 6U Tl Is Equipped With A 24-Port Blank Patch Panel, Lockable Casters, And Can House Most Rack-Mountable Ubiquiti Devices.