Asus P7H55-M LX USB3 - Internal Connectors Overview

7. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports connect to
USB 2.0/1.1 devices.
8. USB 3.0 ports 3 and 4. These two 9-pin Universal Serial Bus (USB) ports connect to
USB 3.0/2.0 devices.
• DO NOT connect a keyboard / mouse to any USB 3.0 port when installing Windows
®
operating system.
• Due to USB 3.0 controller limitation, USB 3.0 devices can only be used under Windows
®
OS environment and after the USB 3.0 driver installation.
• USB 3.0 devices can only be used as data storage only.
• We strongly recommend that you connect USB 3.0 devices to USB 3.0 ports for faster
and better performance for your USB 3.0 devices.
9. DVI-D port. This port is for any DVI-D compatible device. DVI-D can’t be converted to
output RGB Signal to CRT and isn’t compatible with DVI-I.
1.7.2 Internal connectors
1. USB connectors (10-1 pin USB56, USB78, USB910, USB1112)
These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with the USB 2.0 specication that supports up
to 480Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
P7H55-M LX/USB3
P7H55-M LX/USB3 USB2.0 connectors
PIN 1
USB+5V USB_P10- USB_P10+ GND NC
USB+5V
USB_P9-
USB_P9+
GND
USB910
PIN 1
USB+5V USB_P12- USB_P12+ GND NC
USB+5V
USB_P11-
USB_P11+
GND
USB1112
PIN 1
USB+5V USB_P6- USB_P6+ GND NC
USB+5V
USB_P5-
USB_P5+
GND
USB56
PIN 1
USB+5V USB_P8- USB_P8+ GND NC
USB+5V
USB_P7-
USB_P7+
GND
USB78
Chapter 1: Product introduction1-9