Optical drive
Reads from and writes to CDs and DVDs.
Optical-drive activity light
Turns on when the computer reads from or writes to the optical disc.
Optical-drive eject button
Press to open the optical drive tray.
Optical-drive emergency eject pinhole
Used to eject the optical-drive tray manually if the optical-drive eject button fails.
Power button
Press to turn on the computer if it is turned off, in sleep state, or in hibernate state.
Press to put the computer in sleep state if it is turned on.
Hard-drive activity light
Turns on when the computer reads from or writes to the hard drive.
SD-card slot
Reads from and writes to the SD card.
Headphone/speaker port
Connect headphones, a headset (headphone and microphone combo), or speakers.
USB 3.1 Gen 1 ports (2)
Connect peripherals such as external storage devices and printers. Provides data transfer speeds up to 5 Gbps.