QDI BA1 Manual page 16

Hard Disk LED Connector (HD_LED)
Power LED Connector (PWR_LED)
Speaker Connector (SPEAKER)
Reset Switch (RESET)
USB3,4 Connectors
&
HD_LED
GND GND D1+ D1- +5V
1
+5V D0- D0+ GND GND
Manual for BA1 series
HDD LED(+)
HDD LED(-)
LED+
VCC
LED- GND
LED-
NC
GND
SPKDATA
POWER RESET
EMPTY GND
USB3,4