Acer XB323K User Manual page 34

• USB Port Select: Selects the upstream port (Auto / B-Type / C-Type). Default:
Auto. When set to Auto, the display will automatically select the USB port
according to the signal source. If a signal from the HDMI or DP port is detected,
the display will switch to B-Type. If a signal from the DP ALT port is detected,
the display will switch to C-Type.
Note: You need to connect the monitor to your computer using the
corresponding USB cable after selecting the upstream port.
• Max Refresh Rate: Configures the monitor's maximum refresh rate (144Hz /
160Hz). Default: 160Hz.
• USB 3.0: Configures the data transmission speed of the USB Type-C port at the
bottom side of the rear panel (Off / On). Default: Off.
Note:
1. If USB 3.0 is set to Off, the transmission speed of the USB Type-C port
will be downgraded to the USB 2.0 specification, which allows the DP
Alt (DisplayPort Alternate) mode to support resolution 3840x2160
@160Hz.
2. If USB 3.0 is set to On, the transmission speed of the USB Type-C port
will comply with the USB 3.0 specification and the DP Alt mode can
support resolution 3840x2160 @60Hz.
• HDMI 2.1: Enables/Disables the HDMI 2.1 specification (Off / On). Default: On.
• Power-off USB Charge: Enables/Disables the power charging function of the
USB port (Off / On). Default: Off.
Note:
1. If Power-off USB Charge is set to Off, when the monitor is powered
off, you cannot charge your devices using the USB port.
2. When Power-off USB Charge is set to Off, the sleep mode cannot be
resumed via the USB Type-C input. The user needs to set Power-off
USB Charge to On.
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