Does DVB-C TV dongle power antenna?

I see OSMC Store includes now a more complete “DVB-T2/DVB-C TV dongle”.
As far as I know, current Satellite antennas installation expect to get power from DVB-C decoder through antenna cable itself.
I want to know if this product feeds this or it’s required to add a power injector to the cable.

I suppose that, to use both DVB-T and DVB-C antennas, a splitter is needed to divide cable.

C = cable
S = satellite

Ah, sorry, ok, and thank you.
Now I’m looking for compatible DVB-S2 dongle, such as “TechniSat SkyStar USB 2” or “Sundtek SkyTV”