With this 1U rack shelf, you can add flat storage space to EIA-310 compliant server racks or cabinets. The ventilated design improves air circulation and reduces the temperature in your rack. The sturdy, non-adjustable rack shelf is made from cold-rolled SPCC steel of commercial quality. Instead of taking up space on your desk or other surfaces, the 1U cantilever shelf optimizes your workspace by mounting your devices in your rack. It is perfect for your SoHo environment, server room, or any location where space is limited. Install the 1U rack shelf at any height in your rack to create a stable surface for placing devices that are unsuitable for rack mounting or for storing your tools.