ASROCK X79 Extreme9 User Manual page 49

USB 2.0 Headers
(9-pin USB_8_9)
(see p.12 No. 39)
(9-pin USB_10_11)
(see p.12 No. 36)
(9-pin USB_12_13)
(see p.12 No. 34)
USB 3.0 Header
(19-pin USB3_4_5)
(see p.12 No. 18)
(19-pin USB3_6_7)
(see p.12 No. 17)
USB_PWR
P-9
P+9
GND
DUMMY
1
GND
P+8
P-8
USB_PWR
USB_PWR
P-11
P+11
GND
DUMMY
1
GND
P+10
P-10
USB_PWR
49
Besides six default USB 2.0
ports on the I/O panel, there
are three USB 2.0 headers on
this motherboard. Each USB 2.0
header can support two USB
2.0 ports.
Besides two default USB 3.0
ports on the I/O panel, there are
two USB 3.0 headers on this
motherboard. Each USB 3.0
header can support two USB
3.0 ports.