1. Power button
2. Optical drive*
3. Card reader*
4. microphone (3.5mm)
5. Headphone / microphone combo jack (3.5mm)
6. USB-C® 3.2 Gen 1
7. 2x USB 3.2 Gen 1
8. 2x USB 3.2 Gen 2
9. Line-out (3.5mm)
10. Flex IO*
11. HDMI® 2.1 TMDS
12. 2x DisplayPort™ 1.4
13. 4x USB 2.0
14. 2x PS/2 ports (keyboard / mouse)*
15. Ethernet (RJ-45)
16. Serial*
17. Optional ports on expansion cards*