Dell Alienware Area 51 R2 (Late 2014) - Manual (Page 19)

1 rear I/O accessibility lighting
battery connector (VBAT1) 2 rear I/O accessibility lighting
connector (PORCH_LIGHT1)
3 left theater-lighting connector
(POGO_IN_L1) 4 right theater-lighting connector
(POGO_IN_R1)
5 USB connector (USB1) 6 debug connector (DEBUG1)
7 front I/O control connector
(FIO_PWR1) 8 front I/O connector (USB3_FIO1)
9 main-power connector (PWR1) 10 optical drive power connector
(ODD1)
11 logo board connector (LOGO1) 12 audio connector (AUDIOIO1)
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