Asus T300L Series E-Manual page 94

I/O Interface Security
In the Security menu, you can access I/O Interface Security to lock or
unlock some interface functions of your Notebook PC.
To lock an interface:
On the Security screen, select I/O Interface Security.
1.
Select an interface you would like to lock then select Lock.
.

I/O Interface Security
Wireless Network Interface
HD AUDIO Interface
USB Interface Security
If Locked, Wireless Network will be disabled
UnLock
UnLock
Notebook PC E-Manual