Microsoft Surface Hub 2 SmCamera - Manual (Page 109)

In general, it’s recommended to use native cable connections whenever possible such as
USB-C to USB-C or HDMI to HDMI. Other combinations such as MiniDP to HDMI or
MiniDP to USB-C will also work. Some additional configuration may be required to
optimize the video-out experience, as described on this page.
Connection Functionality Description
HDMI +
USB-C HDMI-in for
audio and
video
USB-C for
TouchBack and
InkBack
USB-C supports TouchBack and InkBack with the HDMI A/V
connection.
Use USB-C to USB-A to connect to legacy computers.
NOTE: For best results, connect HDMI before connecting a USB-C
cable. If the computer you're using for HDMI is not compatible
with TouchBack and InkBack, you won't need a USB-C cable.
USB-C
(via
compute
module) Video-in
Audio-in Single cable needed for A/V
TouchBack and InkBack is supported
HDCP enabled
HDMI (in
port) Video, Audio
into Surface
Hub 2S Single cable needed for A/V
TouchBack and InkBack not supported
HDCP enabled
MiniDP 1.2
output Video-out such
as mirroring to
a larger
projector. Single cable needed for A/V
When you connect a guest computer to Surface Hub 2S via the USB-C port, several USB
devices are discovered and configured. These peripheral devices are created for
TouchBack and InkBack. As shown in the following table, the peripheral devices can be
viewed in Device Manager, which will show duplicate names for some devices, as shown
in the following table.
Peripheral Listing in Device Manager
Recommended wired configurations