Why is an OTG connector used? After getting a C to A USB 3 adapter I have still not got the C port to work with other devices. I see many users have OTG so I have ordered a C to A OTG cable, but would welcome an explanation of why it is used on our Windows 10 Cube PC? I thought it was mainly intended for connecting Android tablets / phones to Windows devices such as mice, printers, flash drives.