Dell OptiPlex Small Form Factor 7020 Owner's Manual page 8

2. Slim optical drive (optional)
Reads from and writes to CDs and DVDs.
3. Hard-drive activity light
The activity light turns on when the computer reads from or writes to the hard drive.
4. Universal audio port
Connect headphones or a headset (headphone and microphone combo).
5. Two USB 2.0 (480 Mbps) ports
Connect devices such as external storage devices and printers. Provides data transfer speeds of up to 480 Mbps.
6. USB 3.2 Gen 1 (5 Gbps) Type-C port
Connect to external storage devices. Provides data transfer speeds up to 5 Gbps.
NOTE: This port does not support video/audio streaming.
7. USB 3.2 Gen 1 (5 Gbps) port
Connect devices such as external storage devices and printers. Provides data transfer speeds up to 5 Gbps.
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