Asus A78M-E User Guide - Page 28

10. USB 2.0 connectors (10-1 pin USB34, USB56) 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 USB 2.0 specification that supports up to 480Mbps connection speed. USB56 USB34 USB+5V USB_P5USB_P5+ GND NC USB+5V USB_P3USB_P3+ GND NC A78M-E PIN 1 PIN 1 USB+5V USB_P6USB_P6+ GND USB+5V USB_P4USB_P4+ GND A78M-E USB2.0 connectors Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard! The USB 2.0 module is purchased separately. 11. USB 3.0 connector (20-1 pin USB3_34) These connectors allow you to connect a USB 3.0 module for additional USB 3.0 front or rear panel ports. With an installed USB 3.0 module, you can enjoy all the benefits of USB 3.0 including faster data transfer speeds of up to 5Gbps, faster charging time for USB-chargeable devices, optimized power efficiency and backward compatibility with USB 2.0. USB3_34 PIN 1 USB3+5V IntA_P1_SSRXIntA_P1_SSRX+ IntA_P1_SSTXGND IntA_P1_SSTX+ GND IntA_P1_DIntA_P1_D+ GND USB3+5V IntA_P2_SSRXIntA_P2_SSRX+ GND IntA_P2_SSTXIntA_P2_SSTX+ GND IntA_P2_DIntA_P2_D+ A78M-E A78M-E USB3.0 connector You can connect the ASUS front panel USB 3.0 bracket to this connector to obtain the front panel USB 3.0 solution. 1-20 Chapter 1: Product introduction