Asus PRIME H310I-PLUS R2.0 User Manual page 12

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 audio standard. Connect one end of the front panel audio I/O module
cable to this connector.
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Chassis intrusion header (4-1 pin CHASSIS)
This header is for a chassis-mounted intrusion detection sensor or switch Connect
one end of the chassis intrusion sensor or switch cable to this header. The chassis
intrusion sensor or switch sends a high-level signal to this header when a chassis
component is removed or replaced. The signal is then generated as a chassis
intrusion event.
By default, the pin labeled "Chassis Signal" and "Ground" are shorted with a jumper
cap. Remove the jumper caps only when you intend to use the chassis intrusion
detection feature.
TPM connector (14-1 pin TPM)
This connector supports a Trusted Platform Module (TPM) system, which can
securely store keys, digital certificates, passwords, and data. A TPM system also
helps enhance network security, protects digital identities, and ensures platform
integrity.
Serial port connector (10-1 pin COM)
Connect the serial port module cable to this connector, then install the module to a
slot opening at the back of the system chassis.
USB 2.0 connectors (10-1 pin USB78)
Connect a USB module cable to any of these connectors, then install the module
to a slot opening at the back of the system chassis. These USB connectors comply
with USB 2.0 specifications and supports up to 480Mbps connection speed.
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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.
If you want to connect a high-definition front panel audio module to this connector,
set the Front Panel Type item in the BIOS setup to [HD Audio]. By default, this
connector is set to [HD Audio].
Chapter 1: Product introduction