What are the USB ports on a ps2 for?

Related questions

1. Is it illegal to use ROMs?
2. Can I download ps2 games and play them on ps2?
3. What is free Mcboot ps2?
4. How can I play ps2 games from pendrive?
5. Are NES ROMs illegal?
6. Can n64 play NES games?
7. What is Romset?
8. What is the expansion bay on a ps2 used for?
9. Can ps2 play copied games?
10. What is a BIOS ROM pcsx2?

Tags

1. #front
2. #peripheral
3. #connect
4. #accessories
5. #playstation
6. #buzzer
7. #games
8. #harmonix
9. #functionality
10. #ports
11. #console
12. #enhance
13. #singstar
14. #include
15. #panel
16. #microphones