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.
Please clarify where you saw and USB E34 : usb e12 vs usb e34
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Does this USB cable go into "USB12" or "USB34" : r/PcBuildHelp If you're ever unsure about a specific motherboard's