Asus SABERTOOTH 990FX/GEN3 R2 manual Motherboard rear and audio connections, Rear I/O connection

2.3Motherboard rear and audio connections

2.3.1Rear I/O connection

Rear panel connectors

1.	PS/2 Combo port	7.	USB 2.0 ports 3, 4, 5, and 6
2.	USB 3.0 ports 1 and 2	8.	USB 3.0 ports 3 and 4
3.	LAN (RJ-45) port*	9.	USB BIOS Flashback button
4.	USB 2.0 ports 7 and 8	10.	USB 2.0 ports 1 and 2
5.	Optical S/PDIF Out port	11.	Audio I/O ports**
6.	External SATA ports

* and **: Refer to the tables on the next page for LAN port LEDs, and audio port definitions.

Chapter 2

ASUS SABERTOOTH 990FX/GEN3 R2.0 2-13