Gigabyte Aorus B550 Pro V2 supports USB 3.2 header, but only mass storage devices function properly.
Gigabyte Aorus B550 Pro V2 supports USB 3.2 header, but only mass storage devices function properly.
You're facing a compatibility issue with your GIGABYTE AORUS B550 Pro V2. The USB 3.0 ports seem to be mismatched with the USB 3.2 header on your Fractal Design Define R6. Initially, you used the 3.2 header for 3.0 ports because they fit, but now only USB mass storage devices are working on the 3.0 front ports. The devices that function include external 3.0 HDDs at full speed, various USB sticks, and SD card readers. However, your iPhone 12, Windows, Nintendo Switch, and Dualsense controller behave differently—Windows reports connection issues, the Switch doesn't detect it even in Hekate mode, and the controller shows erratic yellow blinking. Despite using the same cables as before, the ports only worked with USB 2.0 connections. You suspect a loose contact or incorrect header assignment, but you're unsure how to resolve it. Someone might have an explanation for this behavior.