Please find below a list with supported 3rd party devices for Gigaset Maxwell 10.
All tests were performed by the Gigaset pro support team.

USB Webcam

Brand	Model
Logitech	Webcam C930e

All those devices work under Android 4.2.2 http://www.ideasonboard.org/uvc/#devices

...

HDMI Display

Brand	Model
Samsung	S22C350H

...