LG StudioWorks 221U User Manual page 10

Installation
USB specifications
A7
Making use of USB (Universal Serial Bus) Feature
monitor
computer
keyboard
NOTE
To activate the USB hub function, the monitor must be connected to a USB
compliant PC(OS) or another hub with the USB cable(enclosed).
When connecting the USB cable, check that the shape of the connector at the
cable side matches the shape at the connecting side.
When the monitor is not plugged into an electric socket, the peripherals
connected to the downstream ports will not operate.
Even if the monitor is in a power saving mode, USB compliant devices will
function when they are connected the USB ports(both the upstream and
downstream) of the monitor.
USB standard
Downstream power supply
Communication speed
USB port
Example of connection
mouse
printer
Rev. 1.0 complied self-powered hub
500mA for each (MAX)
12 Mbps (full), 1.5 Mbps (low)
1 Upstream port
4 Downstream ports
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