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USB3/USB4: Front Panel USB connectors
The motherboard has four USB ports installed on the rear edge I/O port array.
Additionally, some computer cases have USB ports at the front of the case. If
you have this kind of case, use auxiliary USB connector to connect the front-
mounted ports to the motherboard.
Pin Signal Name Function
1 USBPWR0 Front Panel USB Power
2 USBPWR1 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 USB_FP_OC0 Over-current signal
Note: Please make sure that the USB cable has the same pin assignment as indi-
cated above. A different pin assignment may cause damage or system
hang-up.
SPDIFO1: SPDIF out header (optional)
You can purchase an optional 24-bit digital audio extension bracket from a
third-party vendor. You can use the audio RCA jacks to connect to digital audio
devices. If your CD-ROM/DVD device has digital audio output, you can con-
nect it to the SPDIF connector.
Pin Signal Name Function
1 SPDIF SPDIF digital output
2 +5VA 5V analog power
3 NC Not connected
4 GND Ground
AUXIN1: Auxiliary-in header
This connector is an additional line-in audio connector. It allows you to attach
a line-in cable when your rear line-in jack is set as line out port for 4-channel
function.
Pin Signal Name Function
1 AUX_L AUX In left channel
2 GND Ground
3 GND Ground
4 AUX_R AUX In right channel
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