Asus P9X79-E WS - Manual (Page 71)

2.3.9 Rear panel connection
Rear panel connectors
1. PS/2 mouse and keyboard port 7. USB BIOS Flashback button
2. LAN (RJ-45) port 1* 8. Optical S/PDIF Out port
3. USB 3.0 ports 1 and 2 9. USB 2.0 ports 7 and 8
4. LAN (RJ-45) port 2** 10. External SATA 6.0 Gb/s ports 1 and 2
5. USB 2.0 ports 1 and 2 11. USB 2.0 ports 9 and 10
6. USB 2.0 ports 3, 4, 5, and 6 12. Audio I/O ports**
*and **: Refer to the tables on the next page for LAN port and audio port definitions.
ASUS P9X79-E WS 2-47