Based on this product's specifications, here are some alternatives and similar models
Rittal 8100.245 Side Panel for Server Racks, Steel, Grey
Summary description:
The Rittal 8100.245 side panel is a high-quality rack accessory designed for secure enclosure management. Constructed from durable steel and finished in a neutral grey, this panel provides robust protection and structural integrity for server rack systems. It is an essential component for maintaining organized and secure IT infrastructure, ensuring optimal equipment housing in professional data center or server room environments.