QOTOM TECHNOLOGY LIMITED10 / 11 www.qotom.net1-2 3.3V2-3 5VADJ_PWR1 Definition of Pin (Manual Control LVDS Backlight Inverter Voltage Selection Header)1-2 5V2-3 3.3V20. Extended USB PinPin for accessing extended USB2.0, extensible to 2 groupLead Signal Lead Signal1 +5V DC 2 +5V DC3 D- 4 D-5 D+ 6 D+7 Ground 8 Ground9 KEY (no pin) 10 No Connect21. System Fan HeaderFor connecting fan of the system22. VGA Connection PinPin for accessing extended VGA port, standard VGA Signal outputLead Signal Lead Signal1 VCC_PWR 2 RED3 DDC_DATA 4 GREEN5 DDC_CLK 6 BLUE7 VSYNC 8 GND9 HSYNC 10 GND23. Hard Drive Indicator Lamp