User’s Manual

Audio 2, 4, 5.1, or 7.1-channel conguration
Port
Headset
2-channel
4-channel 5.1-channel 7.1-channel
Light Blue (Rear panel) Line In Rear Speaker Out Rear Speaker Out Rear Speaker Out
Lime (Rear panel) Line Out Front Speaker Out Front Speaker Out Front Speaker Out
Pink (Rear panel) Mic In Mic In Bass/Center Bass/Center
Lime (Front panel) - - - Side Speaker Out
10. Power connector. Plug the power cord to this connector.
RATING: 115/230Vac, 50/60Hz, 4A/2A (Global)
220V~, 50Hz, 2A (Chinese Mainland)
115Vac, 60Hz, 4A (Taiwan)
115/230Vac, 50/60Hz, 4A/2A (Japan; Korea)
11. Air vents. These vents allow air ventilation.
DO NOT block the air vents on the chassis. Always provide proper ventilation for your computer.
12. Expansion slot brackets. Remove the expansion slot bracket when installing an expansion
card.
• PCIEX16_1 slot supports graphics cards and storage devices only while other PCIE slots
support storage devices and other PCIe devices.
• Install the primary graphics card in PCIEX16_1 if you use two graphics cards.
PCIEX1_1
PCIEX16_2
PCIEX1_2
PCIEX16_1
• Refer to Installing a graphics card in your computer for detailed instructions.
13. Serial port (optional). This 9-pin COM port is for pointing devices or other serial devices.
ASUS Desktop PC 21
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