Conexant/Synaptics does not release a standalone .exe driver for consumers. The chip is designed to be plug-and-play using the OS’s native USB audio stack.
There is no proprietary driver to “fix” Windows 7 support for this chip. conexant cx31993 driver
| Feature | Conexant CX31993 | Realtek ALC5686 | Qualcomm WCD9385 | | :--- | :--- | :--- | :--- | | | None (native) | None (native) | None (native) | | Max PCM | 32/384 | 32/384 | 32/192 | | DSD support | No (PCM only) | DSD64/128 | No | | Power draw | ~100mW | ~120mW | ~80mW | | Typical cost (dongle) | $8–15 USD | $15–25 USD | $20–40 USD | Conexant/Synaptics does not release a standalone
The chip supports high-resolution audio formats and provides clean amplification. Conexant (CX-Pro) CX31993 USB-C Amp/DAC Review | Feature | Conexant CX31993 | Realtek ALC5686
The Conexant CX31993 is a fully USB class-compliant audio codec. It requires on any modern OS. All functionality is provided by the operating system’s native USB Audio 2.0 driver stack. Reported issues are generally related to power management or buffer handling, not missing drivers.