Intel SG-81 - Manual (Page 17)

Hardware Setup 2-7
2.3.5. Additional USB Port Connection Header (USB3, USB4)
These headers each provide 2 additional USB 2.0 ports connection through an USB
cable designed for USB 2.0 specifications.
Pin Signal Name Function
1 USBPWR Front Panel USB Power
2 USBPWR Front Panel USB Power
3 USB_FP_P0- USB Port 0 Negative Signal
4 USB_FP_P1- USB Port 1 Negative Signal
5 USB_FP_P0+ USB Port 0 Positive Signal
6 USB_FP_P1+ USB Port 1 Positive Signal
7 GND Ground
8 GND Ground
9 Key No pin
10 NC NC
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