Asus ET2221IUTH - Manual (Page 15)

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15 All-in-One PC ET22 Series
HDMI Output Port
Connect this port with devices equipped with HDMI input port, such as LCD monitor
or projector.
Video Graphics Adapter (VGA) Port
VGA ports are available for connecting additional VGA monitors or displays.
COM port
This serial port connects a modem, or other devices that conform with serial
specifications.
LAN port
The eight-pin RJ-45 LAN port supports a standard Ethernet cable for connection to a
local network.
USB 3.0 ports
These USB (Universal Serial Bus) ports provide a transfer rate of up to 5Gbit/s and are
backward compatible with USB2.0.