Based on this product's specifications, here are some alternatives and similar models
Rackmount.IT RM-HP-T3 Mounting Bracket for HP Mini Series
Summary description:
The Rackmount.IT RM-HP-T3 is a professional-grade mounting bracket designed specifically for HP Mini series devices. This black rack accessory allows for secure and organized installation of your hardware into standard server racks. It ensures optimal airflow and stability, making it an ideal solution for data centers, server rooms, and professional IT environments requiring efficient equipment management.