t480-oc
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Front USB port is USB 2.0 only
The front USB port is only mapped for USB 2.0, the one nearest the rj45 port works with 2 and 3 devices.
This is in the latest version/1.2.2
Disabling the usbmap kext resolves the issue.
Use hackintool for USB customization, replace USBMap.kext with USBPort.kext, all USB ports are normal