Based on this product's specifications, here are some alternatives and similar models
Lanview RAB205WH Blank Panel for 19-inch Server Rack
Summary description:
The Lanview RAB205WH is a high-quality blank panel designed for 19-inch server racks. Constructed from durable steel and finished in white, this accessory is used to cover unused rack spaces, improving airflow management and maintaining a clean, professional appearance in your network cabinet. It ensures optimal organization and protection of internal components.