M640
1. Optical drive eject button*
2. Optical drive activity indicator*
3. SD card slot*
4. Power button
5. Storage drive activity indicator
6. Microphone connector
7. Headset connector
8. USB-C
®
3.2 connector Gen 1
9. USB 3.2 connectors Gen 1
10. USB 3.2 connectors Gen 2
11. Internal speaker*
* for selected models
4
Qitian M445 / M640 / B445 User Manual V2.0 (E-version)
Summary of Contents for Qitian B445
Page 1: ...Qitian M445 M640 B445 User Manual V2 0 E version ...
Page 2: ... January 2022 Copyright Lenovo 2022 ...
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