Based on this product's specifications, here are some alternatives and similar models
Roborock Vacuum Cleaner Accessory Dock PCBA 220V for S7 Max Ultra
Summary description:
Electronic dock PCBA (printed circuit board assembly) designed for Roborock S7 Max Ultra docking station. Operates at 220V and replaces the internal control board of the dock to restore charging, communication and automated dock functions. Intended for service or repair use by technicians or experienced users to recover dock operation and extend device lifespan.