Alienware Area-51 A51-3254 用户手册

Press to turn on the computer if it 
is turned off or in Sleep state.
Press to shut down the computer if 
it is turned on.
Press and hold for 4 seconds to 
force shut‑down the computer.

Press to eject the media from the 
optical drive.

Reads from and writes to CDs, 
DVDs, and Blu‑ray discs.

Connect a headphone or speakers.

Connect an external microphone to 
provide sound input.

Connect peripherals such as 
storage devices, printers, and so 
on. Provides data transfer speeds 
up to 5 Gbps.

Reads from and writes to  
media cards.

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