This connector is a chassis-mounted front panel audio I/O module that supports either HD Audio or the legacy AC'97 audio standard. Connect one end of the front panel audio I/O module cable to this connector.
This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis.
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Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector.
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These connectors are for ATX power supply plugs. The power supply plugs are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit.
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These connectors connect to Serial ATA 6.0GB/s hard disk drives via Serial ATA 6.0GB/s signal cables.
The 4-pin connector is for the chassis mounted system warning speaker. The speaker allows you to hear system beeps and warnings.
This connector supports several chassis mounted functions.
System power LED (2-pin PWR_LED)
This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector. The system power LED lights up when you turn on the system power, and blinks when the system is in sleep mode.
Hard disk drive activity LED (2-pin HDD_LED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable to this connector. The IDE LED lights up or flashes when data is read from or written to the HDD.
ATX power/soft-off button (2-pin PWR_BTN)
This connector is for the system power button.
Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for system reboot without turning off the system power.
The LPT (Line Printing Terminal) connector supports devices such as a printer . LPT standardizes as IEEE 1284, which is the parallel port interface on PC-compatible computers.
These connectors are for USB 2.0 ports. Connect the 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 specification that supports up to 480 Mbps connection speed.
This connector allows you to connect a USB 3.1 Gen 1 module for additional USB 3.1 Gen 1 front or rear ports. You can enjoy the benefits of USB 3.1 Gen 1, including faster data transfer speeds up to 5 Gbps, faster charging time for USB-chargeable devices, optimized power efficiency, and backward compatibility with USB 2.1.
This socket allows you to install an M.2 (NGFF) SSD module. PCIe storage in M.2 format is much faster than traditional hard drives.
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