1. S1/S2 buttons
2. Play/Pause button
3. Stop button
4. Previous track button
5. Next track button
6. AV MODE button
7. WIRELESS switch
8. Memory Stick slot
9. SD Memory Card slot
10. Muting button
11. Volume control buttons
12. Drive eject button
13. Headphones/OPTICAL OUT jack
14. Microphone jack
15. Hi-Speed USB (USB 2.0) connectors
16. Optical disc drive
17. Substitute drive eject button
18. Manual eject hole
19. Network (Ethernet) connector
20. Modem connector
21. Power button
22. Built-in MOTION EYE camera
23. Built-in microphone (monaural)
24. Built-in speakers (stereo)
25. Fingerprint sensor*
26. DC IN connector
27. Hi-Speed USB (USB 2.0) connector
28. Monitor connector
29. HDMI connector
30. ExpressCard/34 slot
31. CF (CompactFlash) Memory Card slot*
32. CF Memory Card release button*
33. i.LINK 4-pin (S400) connector
* On selected models only.
34. Subwoofer speaker for bass frequencies