Characteristics and Interoperability STEEL C-Clamp mount construction results in a strong, stable structure that can support up to 20 kg. Maximized Desk Space: The ACGD171 expands your desk's surface area by adding a separate area for your monitor. PREMIUM MATERIAL: Our carbon fiber surface is resistant to water damage and scratches because it is made of high-quality, long-lasting materials. but very simple to keep up with. ERGONOMIC DESIGN: Raise your desk at home and straighten your back.