Based on this product's specifications, here are some alternatives and similar models
Wall-mounted CPU Holder StarTech CPUWALLMNT — adjustable mount for desktop towers, fits widths 12.2–21.2 cm, max load 10 kg
Summary description:
Adjustable wall-mounted CPU holder from StarTech (model CPUWALLMNT) designed to secure desktop computer towers. Universal fit accommodates horizontal widths from 12.2 to 21.2 cm and supports up to 10 kg. Dimensions (W×D×H): 212×235×154 mm. Suited for saving desk space, protecting units from floor dust and improving accessibility for office or home setups.