Usb20_12 – Asus P4B266 User Manual
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Chapter 2: Hardware information
7. USB headers (10-1 pin USB11_23, USB20_12, USB20_34)
If the USB port connectors on the rear panel are inadequate, three USB
headers are available for additional USB port connectors. The header
labeled USB11_23 complies with the Universal Serial Bus (USB) 1.1
specification. Connect the bundled 2-port USB connector set to this
header and mount the USB bracket to an open slot in the chassis.
P4B266
®
P4B266 USB Header
USB11_23
USB Power
USBP2
–
USBP2+
GND
NC
USB Power
USBP3
–
USBP3+
GND
1
5
6
10
The other two USB headers (blue) comply with USB 2.0 specification
that supports up to 480 Mbps connection speed. This speed advantage
over the conventional 12 Mbps on USB 1.1 allows faster Internet
connection, interactive gaming, and simultaneous running of high-
speed peripherals. These headers support the next generation USB
peripherals such as high resolution cameras, scanners, and printers.
The USB 2.0 headers, controller chipset, and jumper are optional.
P4B266
®
P4B266 USB 2.0 Headers
USB20_34
USB+5V
LDM1
LDP1
GND
NC
USB+5V
LDM2
LDP2
GND
1
5
6
10
USB20_12
USB+5V
LDM3
LDP3
GND
NC
USB+5V
LDM4
LDP4
GND
1
5
6
10