The APC 4-Post Open Frame Rack 44U (AR203A) provides a simple and cost-effective solution for mounting rack-mount equipment in IT environments. This open rack system allows for unobstructed airflow and quick access to installed equipment, making it perfect for rack-mount servers, networking, and telecom applications where security at the individual rack level is not a concern. With a height of 44U and a width of 19 inches, this rack is designed to accommodate various equipment sizes. The square holes facilitate easy installation, and the numbered U-space positions on the vertical mounting rails simplify the setup process. Additionally, the reversible stabilization plates can be mounted internally to save floor space or externally for added stability. The rack is compatible with APC cable managers and includes an installation guide for easy assembly. Enjoy peace of mind with a 5-year warranty from APC.