Tripp Lite MTB3-DOCK-04 Bedienungsanleitung Seite 7

Installation
4. Connect an external speaker, microphone, headset or other
audio device to the 3.5 mm audio jack.
5. Connect up to two USB peripherals to the USB-A ports.
6. Connect the RJ45 jack to a wired Gigabit Ethernet network
with a user-supplied UTP patch cable.
7