Samsung S55BG97 Series User Manual page 21

Connects to a PC, using a USB cable. This port is compatible with USB 2.0 cables.
" For more information about the USB Upstream, refer to "Connecting the Product to a PC as
a USB HUB".
Dedicated to service technicians.
Connects to a audio device using the optical(digital) cable.
Use Cat7(*STP Type) cable for the connection. (10/100 Mbps)
*Shielded Twist Pair
Connects to a source device using a HDMI cable or HDMI-DVI cable.
Use the provided One Invisible Connection to connect the product and One Connect.
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