Ergotron Universal CPU Holder.Universal CPU Holder This holder mounts most computers to a variety of surfaces: directly to a wall, or under a desk, or to Ergotron Wall Track, Command Post or select Carts. This unitâ€TMs design is attractive and open, keeping your system cool when it is in use for long periods of time. Unique security fasteners deter theft. - Size-adjustable CPU holder fits a wide range of computers - Secure solution safeguards your investment - Scalable design for future CPU upgrades - Clean aesthetics