Based on this product's specifications, here are some alternatives and similar models
Rack shelf SCHROFF 19" extendable 2U depth 500 mm model 22130352
Summary description:
19" SCHROFF rack shelf, extendable design, 2U height and 500 mm depth (model 22130352). Provides a stable platform for mounting equipment, tools or peripherals in 19-inch racks and enclosures. Suitable for server rooms, network cabinets and industrial racks where fixed or slide-out storage is needed. Metal construction ensures durability and secure load support.