Asus P4SD User Guide - Page 15

6. USB headers (10-1 pin USB1, USB2) If the USB ports on the rear panel are inadequate, two USB headers are available for additional USB ports. The USB headers 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. You may connect a USB module to any of the USB headers. The USB module is purchased separately. P4SD-LA USB+5V LDM1 LDP1 GND NC USB+5V LDM3 LDP3 GND NC P4SD-LA USB 2.0 Header 1 5 1 5 USB2 USB1 6 10 6 10 USB+5V LDM2 LDP2 GND USB+5V LDM4 LDP4 GND 7. Speaker out connector (5-1 pin SPEAKER OUT) This connector is for an optional audio module. Connect one end of the audio cable to this connector and the other end to the audio module. SPEAKER OUT 1 P4SD-LA Speaker Out Connector P4SD-LA +12V Speak Out-R signal Ground Speak Out-L signal ASUS P4SD-LA motherboard 11