User’s Manual

USB 3.0 ports. These Universal Serial Bus 3.0 (USB 3.0) ports connect to USB 3.0 devices
such as a mouse, printer, scanner, camera, PDA, and others.
• DONOTconnectakeyboard/mousetoanyUSB3.0portwheninstallingaWindows®
operating system.
• Windows®7requiresUSB3.0drivertobeinstalledbeforeusingUSB3.0devices.
• WestronglyrecommendthatyouconnectUSB3.0devicestoUSB3.0portsforafasterand
better performance from your USB 3.0 devices.
D521MT/ MD330/ BM3CD
Optical disk drive (optional). This optical disk drive reads or writes data to or from
optical discs.
Optical disk drive eject button (optional). Press this button to eject the optical disk
drive tray.
Power button. Press this button to turn on your computer.
USB 2.0 ports. These Universal Serial Bus 2.0 (USB 2.0) ports connect to USB 2.0 devices
such as a mouse, printer, scanner, camera, PDA, and others.
ASUS Desktop PC 15
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