Gigabyte GA-Z77X-UP4 TH Manual - Page 30
F_USB30 USB 3.0/2.0 Header, COMA Serial Port Header
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F_AUDIO(H) B DB_PORT Voltage measurement module(X58A-OC) PCIe power connector (SATA)(X58A-OC) 14) F_USB30 (USB 3.0/2.0 Header) The header conforms to USB 3.0/2.0 specification and can provide two USB ports. For purchasing the optional 3.5" front panel that provides two USB 3.0/2.0 ports, please contact the local dealer. Pin No. Definition Pin No. Definition 1 VBUS 11 D2+ 20 1 2 SSRX1- 3 SSRX1+ 12 D213 GND 4 GND 14 SSTX2+ 5 SSTX1- 15 SSTX2- 6 SSTX1+ 16 GND 7 GND 17 SSRX2+ 11 10 8 D1- 18 SSRX2- 9 D1+ 19 VBUS 10 NC 20 No Pin F_USB30 TPM w/housing Prior to installing the USB front panel, be sure to turn off your computer and unplug the power cord from the power outlet to prevent damage to the USB front panel. 15) COMA (Serial Port Header) The COM header can provide one serial port via an optional COM port cable. For purchasing the optional COM port cable, please contact the local dealer. Pin No. Definition 1 NDCD- 9 1 2 NSIN 10 2 3 NSOUT 4 NDTR- 5 GND 6 NDSR- 7 NRTS- 8 NCTS- 9 NRI- 10 No Pin Hardware Installation - 30 -