You're looking for information on the Behringer USB audio driver, specifically for the UltraMix 28/40 model. Here's what I found:
Because this is a legacy driver, finding the exact 2.8.40 version can be difficult on the updated Behringer site. Driver Scape: Search for "BEHRINGER USB AUDIO 2.8.40" on Driver Scape to find the driver categorized by OS. Legacy Search: The driver is frequently listed in search results as BEHRINGER_2902_X64_2.8.40.zip , commonly utilized for the UM2 and older UMC22. Installation & Troubleshooting (UM2/UMC) behringer usb audio driver 28 40 download top
Behringer USB Audio Driver version 4.28.40 remains a vital utility for maintaining the operational status of legacy XENYX mixers and entry-level interfaces within modern production workflows. While plug-and-play functionality exists via standard Windows USB class drivers, the deployment of version 4.28.40 is required for professional audio engineering tasks demanding ASIO low-latency performance. System administrators should adhere to the installation protocols outlined in this paper to mitigate hardware recognition errors and ensure signal chain integrity. You're looking for information on the Behringer USB
Disclaimer: This paper is for informational purposes. Always refer to the manufacturer's official documentation for warranty and safety information. Hold Shift while clicking Restart
Shift while clicking Restart.7 for Disable Driver Signature Enforcement.Behringer_USB_Audio_Driver_v2.8.40.exe (file size ~8.2 MB).