Heat in these dongles usually stems from high power draw or poor thermal dissipation in the enclosure:
Before fixing a device, it is crucial to understand its hardware framework. The Conexant (now Synaptics) CX31993 is a dedicated USB Audio Codec designed for USB-C to 3.5mm dongles and portable DAC/AMPs. cx31993 datasheet fix hot
On Windows, if the device isn't recognized or runs hot while failing to play audio, manually uninstall the generic USB driver in Device Manager and let Windows reinstall it fresh. Heat in these dongles usually stems from high