Rack shelf StarTech 1U vented cantilever tray for 19" racks, steel, 10" (254 mm) deep, 50 lb (23 kg) capacity, black

This 1U vented cantilever rack shelf from StarTech provides a compact, sturdy surface for non-rackmount equipment in 19" racks and cabinets compliant with EIA-310. Constructed from commercial‑grade cold‑rolled steel with a black finish, the shelf measures 10" (254 mm) deep, 482.6 mm wide and 44.5 mm high, offering a low-profile storage solution that integrates into standard server rooms, network closets, and SOHO environments. The vented design promotes airflow around placed devices, helping to dissipate heat compared with solid shelves.

Advantages

The cantilever tray delivers a reliable platform for small switches, routers, power supplies, external drives and temporary equipment, supporting up to 50 lb (23 kg). Its heavy‑duty steel construction provides long‑term stability while the vented surface reduces heat buildup. Because it occupies only 1U of rack space, the shelf helps preserve usable rack units for mounted hardware while offering flexible placement at any rack height.

Suitable for

• Mounting non-rackmount network devices such as routers, switches and modems
• Placing external hard drives, backup devices and UPS accessories
• Temporary equipment staging during maintenance or upgrades
• Small office or home office (SOHO) server and network cabinets

Key specifications

• Form factor: 1U cantilever vented shelf for 19" racks
• Material: commercial-grade cold-rolled steel
• Finish: black
• Depth: 10" (254 mm)
• Width: 482.6 mm
• Height: 44.5 mm (1U)
• Weight capacity: 50 lb (23 kg)
• Vented surface for improved airflow

How to use

Install the shelf into any EIA-310 compliant 19" rack or cabinet by aligning the mounting holes with the rack posts and securing it with appropriate rack screws or cage nuts. Position the shelf at the desired height to create a stable, level surface. Place equipment centrally on the shelf to keep loads balanced and avoid overhanging heavy components. Ensure cabling is routed to prevent strain and allow unrestricted airflow around the devices.

Usage recommendations

For best results, distribute weight evenly and keep the total load below the specified 50 lb (23 kg) limit. Use this vented shelf for devices that require airflow and are not intended for rackmounting; avoid placing heat-sensitive components directly on top of high‑temperature equipment. Periodically inspect mounting hardware for tightness and clear dust from the venting to maintain cooling efficiency.