The M-CONNECT 2 is a HUB  arm mount M2.1 and DUAL, M8.1,M10 or MFLEX,  allowing you to take advantage of an integrated docking station (100W). 
A total of 11 connections:
 
Desktop computer hub (On the desktop).
2 USB-A data ports.
1 USB-C charging port.
1 USB-A charging port.
1 x 3.5mm Audio/Microphone port.
Docking station (Under the desk).
3 USB-A data ports.
2 display ports.
1 Ethernet jack connector.
 
Kensington security.
4K-ready.
Weight: 2.1kg.
 
Ref. ​​​​​​KC