Asus H81M-D R2.0 User Guide - Page 21

Audio 2, 4, 6, or 8-channel configuration Port Light Blue (Rear panel) Lime (Rear panel) Pink (Rear panel) Lime (Front panel) Headset 2-channel Line In Line Out Mic In - 4-channel Rear Speaker Out Front Speaker Out Mic In - 6-channel Rear Speaker Out Front Speaker Out Bass/Center - 8-channel Rear Speaker Out Front Speaker Out Bass/Center Side Speaker Out 7. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1 devices. 8. USB 3.0 ports 1 and 2. These two 9-pin Universal Serial Bus (USB) ports connect to USB 3.0/2.0 devices. • Due to USB 3.0 controller limitations, USB 3.0 devices can only be used under a Windows® OS environment and after USB 3.0 driver installation. • The plugged USB 3.0 device may run on xHCI or EHCI mode, depending on the operating system's setting. • USB 3.0 devices can only be used for data storage. • We strongly recommend that you connect USB 3.0 devices to USB 3.0 ports for faster and better performance from your USB 3.0 devices. 9. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices. 10. Serial port. This 9-pin COM port is for pointing devices or other serial devices. 11. PS/2 keyboard port (purple). This port is for a PS/2 keyboard. ASUS H81M-D R2.0 1-13