Asus Prime X399-A User Manual page 32

2. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports HD
Audio. Connect one end of the front panel audio I/O module cable to this connector.
PRIME X399-A Front panel audio connector
We recommend that you connect a high-definition front panel audio module to this
connector to avail of the motherboard's high-definition audio capability.
3. USB 3.1 Gen 2 front panel connector (U31G2_C1)
This connector allows you to connect a USB 3.1 Gen 2 module for additional USB 3.1
Gen 2 ports. The latest USB 3.1 Gen 2 connectivity provides data transfer speeds of
up to 10 Gbps.
PRIME X399-A USB 3.1 Gen 2 front panel connector
1-18
AAFP
PIN 1
HD-audio-compliant
pin definition
U31G2_C1
SBU2
SBU1
CC1
VBUS
RX1-
RX1+
GND
TX1-
TX1+
VBUS
Chapter 1: Product Introduction
VBUS
TX2+
TX2-
GND
RX2+
RX2-
GND
D-
D+
CC2