VESA Capabilities - Mounting plate connects to any VESA 100mm x 100mm holes. Ergonomics - Great for improving posture and other aspects of ergonomics while operating computer. Ventilation - Extra ventilation holes significantly improve airflow to keep your laptop cool. Bottom Lip - Protrudes in order to protect devices from sliding and/or sustaining damage through other means. Compatibility - Tray fits up to 17” laptops and notebooks and is compatible with VESA mounts (This purchase is for the tray only. VESA arm must be purchased separately).