![background image](http://html.mh-extra.com/html/benq/rp553k/rp553k_user-manual_2733795014.webp)
Parts of the display and their functions
10
TOUCH-USB2
Connects the USB cable from the display to a computer to use the
touch module.
TOUCH-USB3
Connects the USB cable from the display to a computer to use the
touch module.
TOUCH-USB4
Connects the USB cable from the display to a computer to use the
touch module.
15
16
17
TOUCH-USB1
must be used with
HDMI 1
,
TOUCH-USB2
must be used with
HDMI 2
,
TOUCH-USB3
must be used with
HDMI 3
, and
TOUCH-USB4
must be used with
HDMI
4(MHL)
or
VGA
.