Based on this product's specifications, here are some alternatives and similar models
AC Adapter GIGABYTE 330W 20V Original Power Adapter for Laptops
Summary description:
Original GIGABYTE 330W 20V power adapter for compatible laptops and portable devices. Delivers up to 330 watts at 20 volts to provide stable power and reliable charging for high-performance notebooks. Includes standard AC input and DC output connector (model-specific); suitable for replacement or spare adapter use in travel, office, and home environments.