Dell Precision Tower 3620 - Page 24

19. front power switch connector 20. 8-pin power connector
21. SATA 1 connector 22. SATA 2 connector
23. internal USB connector 24. hard drive and optical drive power cable
connector
25. OS debug header for debug 26. USB 3.0 connector
27. Thunderbolt header 28. M.2 SSD slot
29. SATA 0 connector 30. front I/O connector
31. SATA 3 connector 32. password reset jumper
33. service Mode jumper connector 34. speaker connector
35. CMCLR jumper 36. CLINK header
37. LPC Debug header for debug
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