The Ultimate Guide to MXT USB Device Drivers on Windows 11 In the world of specialized hardware, "MXT" often refers to , MaxTech , or specific Microchip Atmel maXTouch controllers used in touchscreens and industrial USB interfaces. If your MXT USB device is running "hot"—meaning it is either physically overheating or causing a high-demand "hot" error in your system logs—it typically indicates a driver conflict or a power management glitch within Windows 11.