Based on this product's specifications, here are some alternatives and similar models
Eaton Adjustable Rail and Support Kit for 1000mm Depth Enclosures
Summary description:
This Eaton rail and support kit is designed for server enclosures with a depth of 1000mm. It provides a robust mounting solution for rack-mounted equipment, featuring adjustable depth settings to ensure compatibility with various hardware configurations. Ideal for professional data center and IT infrastructure setups, this kit ensures stable and secure installation of network components.