Based on this product's specifications, here are some alternatives and similar models
Power adapter GIGABYTE 180W 20V original – laptop AC adapter, 180 W, 20 V output
Summary description:
Original GIGABYTE power adapter with 180W power and 20V output designed for compatible laptops and portable devices. Provides AC-to-DC conversion for device charging and operation, with compact external brick form factor and cable connections. Suitable for replacement or spare use to restore power delivery for supported GIGABYTE models and other compatible systems requiring 20V/180W input.