1. 1 x 24-pin ATX main power connector 2. 1 x 4-pin ATX 12V power connector 3. 1 x floppy disk drive connector 4. 1 x IDE connector 5. 8 x SATA 3Gb/s connectors 6. 1 x CPU fan header 7. 2 x system fan headers 8. 1 x power fan header 9. 1 x front panel header 10. 1 x front panel audio header 11. 1 x CD In connector 12. 1 x S/PDIF In header 13. 1 x S/PDIF Out header 14. 2 x USB 2.0/1.1 headers 15. 1 x parallel port header 16. 1 x serial port header 17. 1 x chassis intrusion header 18. 1 x power LED header