User guide

ASUS All-in-One PC ET223 and ET203
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Connecting a wired keyboard and mouse
Connect the keyboard and the mouse to the USB ports on the rear or
side panel.
NOTE: To fully maximize your AiO PC’s AI Charger II feature, we
recommend to use the upper USB 3.0 port on the side panel for wired
keyboard or mouse. Use the lower USB 3.0 port to charge smart devices or
MP3 players.