Gigabyte B550M S2H User Manual - Page 17

S 12) SPEAKER (Speaker Header) Connects to the speaker on the chassis front panel. The system reports system startup status by issuing a beep code. One single short beep will be heard if no problem is detected at system startup. Pin No. Definition 1 1 VCC 2 NC 3 NC 4 SPK- 13) F_U32 (USB 3.2 Gen 1 Header) The header conforms to USB 3.2 Gen 1 and USB 2.0 specification and can provide two USB ports. For purchasing the optional 3.5" front panel that provides two USB 3.2 Gen 1 ports, please contact the local dealer. Pin No. Definition Pin No. Definition Pin No. Definition 1 10 1 VBUS 8 D1- 15 SSTX2- 2 SSRX1- 9 D1+ 16 GND 3 SSRX1+ 10 NC 17 SSRX2+ 20 11 4 GND 11 D2+ 18 SSRX2- 5 SSTX1- 12 D2- 19 VBUS F_USB30 6 SSTX1+ 13 GND 20 No Pin 7 GND 14 SSTX2+ B_ F_ U 14) F_USB1 (USB 2.0/1.1 Header) The header conforms to USB 2.0/1.1 specification. Each USB header can provide two USB ports via an optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer. Pin No. Definition Pin No. Definition 9 1 10 2 1 Power (5V) 2 Power (5V) 3 USB DX- 6 USB DY+ 7 GND 8 GND 4 USB DY- 9 No Pin 5 USB DX+ 10 NC •• Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB 2.0/1.1 header. •• Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord from the power outlet to prevent damage to the USB bracket. - 17 -