Asus P8B WS - Manual (Page 68)

2.3.10 Rear panel connection
Rear panel connectors
1. PS/2 mouse and keyboard port 7. USB 2.0 ports 3 and 4
2. IEEE 1394a port 8. USB 3.0 ports 1 and 2
3. LAN (RJ-45) port 2* 9. Coaxial S/PDIF Out port
4. DVI port 10. Optical S/PDIF Out port
5. LAN (RJ-45) port 1* 11. USB 3.0 ports 1 and 2
6. USB 2.0 ports 5 and 6 12. Audio I/O ports**
*and **: Refer to the tables on the next page for LAN port and audio port definitions.
2-42 Chapter 2: Hardware information