Ensure you are using the correct 19-pin cable. If your case uses older USB 2.0 connectors (usually 9-pin), they will not fit into these 3.0/3.2 headers without an adapter.
If you're ever unsure about a specific motherboard's layout, it's always best to check the digital manual on the Official Manufacturer Support Page or ASUS Support to confirm the exact specs for your specific model. usb e12 vs usb e34
Typically identifies the first and second USB ports (Port 1 and Port 2) on a specific controller. Ensure you are using the correct 19-pin cable
On most modern motherboards, these labels refer to the used to connect the USB ports on your computer case’s front panel to the motherboard. usb e12 vs usb e34