ROG STRIX X370-I GAMING
1-11
Chapter 1
TheUSB3.1Gen1moduleispurchasedseparately.
ThepluggedUSB3.1Gen1devicemayrunonxHCIorEHCImodedependingonthe
operatingsystem’ssetting.
4. USB 3.1 Gen 1 connector (20-1 pin U31G1_12)
ThisconnectorallowsyoutoconnectaUSB3.1Gen1moduleforadditionalUSB
3.1Gen1frontorrearpanelports.WithaninstalledUSB3.1Gen1module,youcan
enjoyallthebenetsofUSB3.1Gen1includingfasterdatatransferspeedsofupto
5Gb/s,fasterchargingtimeforUSB-chargeabledevices,optimizedpowerefciency,
andbackwardcompatibilitywithUSB2.0.
ROG STRIX X370-I GAMING USB3.1 Gen1 connector
USB3+5V
IntA_P1_SSRX-
IntA_P1_SSRX+
GND
IntA_P1_SSTX-
IntA_P1_SSTX+
GND
IntA_P1_D-
IntA_P1_D+
GND
PIN 1
USB3+5V
IntA_P2_SSRX-
IntA_P2_SSRX+
GND
IntA_P2_SSTX-
IntA_P2_SSTX+
GND
IntA_P2_D-
IntA_P2_D+
U31G1_12
5. Front panel audio connector (10-1 pin AAFP)
Thisconnectorisforachassis-mountedfrontpanelaudioI/OmodulethatsupportsHD
Audio.ConnectoneendofthefrontpanelaudioI/Omodulecabletothisconnector.
Werecommendthatyouconnectahigh-denitionfrontpanelaudiomoduletothis
connectortoavailofthemotherboard’shigh-denitionaudiocapability.
ROG STRIX X370-I GAMING Front panel connector
AAFP
PIN 1
AGND
NC
PORT1 L
PORT1 R
PORT2 R
SENSE_SEND
PORT2 L
HD-audio-compliant
pin definition