Pin Pin Assignment Pin Pin Assignment
1 VCC 2 VCC
3 Data 0- 4 Data 0-
5 Data 0+ 6 Data 0+
7 Ground 8 Ground
9 No Pin 10 NC
3.6 Additional USB Port Headers
3.7 Front Panel Audio
The headers conform to USB 2.0/1.1 specication. Each USB header can provide two USB ports
via an optional USB bracket.
Pin No. Header HD Audio Denition AC97 Audio Denition
1 PORT1L Microphone_Left Microphone
2 AGND Ground Ground
3 PORT1R Microphone_Right MIC Power
4 PRESENCE# -ACZ_DET N/A
5 PORT2R Line2_Right Line out (R)
6 SENSE1_RETURN AuD_R_Return N/A
7 SENSE_SEND FAUDIO_JD N/A
8 No Pin N/A N/A
9 PORT2L Line2_Left Line Out(L)
10 SENSE2_RETURN AuD_L_Return N/A
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