Based on this product's specifications, here are some alternatives and similar models
Mounting plate Rittal 8617.640 for racks — galvanized steel, 1100×500 mm, grey
Summary description:
Rittal 8617.640 is a rack mounting plate made of galvanized steel with a grey finish. Designed for use in server and network cabinets, it provides a durable surface for mounting equipment and components. Size 1100×500 mm suits VX series installations; ideal for attaching power distribution, brackets, cable management and auxiliary devices.