Question Why molex on a 3.5" front panel USB 2.0 add-on ?

[Perplexer]

So I'm looking at these USB addons that fit into a 3.5" floppy bay and bring USB 2.0 ports onto the PC case front panel, and I can't figure out why they put a molex connector on there. Each PC case essentially has / had front panel USB 2.0 ports built-in, and it only features a cable that you then plug onto the motherboard 9 -pin USB connector and you got USB 2.0 on the front. There is no extra power required. The front USB ports are usually soldered onto a small PCB along with one or two added capacitors (I'm guessing those are required due to the cable length), but that's it. USB 3 addons seem to be straight-through, but USB 2.0 ones seem to use the PCB with added capacitors and that molex connector, apparently for some kind of power. But why?

https://vi.aliexpress.com/item/4000185511115.html

Amazon.com

Example:

 

[helpstar]

might be for active powering USB
to use it as charge port or use devices which will need more power

 

[hotaru.hino]

I'd wager it's more to make this an active USB hub in order to ensure that whatever's coming out of it is reliable and whatnot. Especially since you already lose like 3 feet to the internal cable.

You're likely not going to get more than what the USB standard defines by default in terms of power output (although that's not something you should test)