ASROCK 990FX Extreme4 User Manual page 31

Serial ATA3 Connectors
(SATA3_1_2: see p.12, No. 21)
(SATA3_3_4: see p.12, No. 20)
(SATA3_5_6: see p.12, No. 19)
(SATA3_7: see p.12, No. 32)
(SATA3_8: see p.12, No. 33)
USB 2.0 Headers
(9-pin USB2_3)
(see p.12 No. 14)
(9-pin USB8_9)
(see p.12 No. 13)
USB 3.0 Header
(19-pin USB3_0_1)
(see p.12 No. 28)
Infrared Module Header
(5-pin IR1)
(see p.12 No. 44)
These eight Serial ATA3
(SATA3) connectors support
SATA data cables for internal
storage devices. The current
SATA3 interface allows up to
6.0 Gb/s data transfer rate. If
you install the HDD on the
eSATA port on the rear I/O,
the internal SATA3_8 will not
function.
SATA3_8 SATA3_7
Besides six default USB 2.0
DUMMY
ports on the I/O panel, there
GND
GND
are two USB 2.0 headers on
P+3 P+2
P-3 P-2
this motherboard. Each USB 2.0
USB_PWR
USB_PWR
header can support two USB
1
2.0 ports.
DUMMY
GND
GND
P+8
P+9
P-9 P-8
USB_PWR USB_PWR
1
Besides two default USB 3.0
ports on the I/O panel, there is
one USB 3.0 header on this
motherboard. This USB 3.0
header can support two USB
3.0 ports.
This header supports an
optional wireless transmitting
and receiving infrared module.
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