A: That means your dongle already has a version equal to or newer than what rev0010 provides.
Introduction If you own a HyperX Cloud II headset—one of the most popular gaming headsets on the market—you may have encountered a file named hyperxcloudiifirmwareupdaterrev0010.exe during a search for driver updates, troubleshooting microphone issues, or enabling the virtual 7.1 surround sound feature. This executable is not just another piece of software; it is a critical utility designed by HyperX (a division of HP) to update the internal firmware of your headset’s USB sound card.
A: Risk is very low if you follow instructions. However, power loss during the update could render the USB dongle unusable. In that case, HyperX support may replace it under warranty.