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Why aren’t motherboards mostly USB-C by now?
(philip.greenspun.com)
This is a most excellent place for technology news and articles.
Btw, why is full ATX / full-size PC still that common, mATX / ITX almost rare? Only techy users or gamers add maybe a 4x ethernet card or a GPU and that's it; one PCIex16 slot would suffice. Better sound cards, wifi etc, are now almost always USB/-C or Bluetooth, if not already on the board.
Why is the time of slim-size desktop PCs still not there?
Because people like having options. The same reason they buy an 80k base sequoia on the off chance (read: never) get a boat and need to tow it.
It makes them feel bad to close doors of opportunity for no reason.
What opportunities? We now have even external GPUs over USB-C.
And you can't turn the cheapo Aldi/Medion PC in a gaming rig, the mainboard just can't do it.
An external GPU over USB-C is worse in every way compared to an internal GPU.
You can't fit as many components on smaller boards and the components are more expensive to produce.
And if you're spending all that money, why not get the bigger board that allows you more options/room to grow in the future? I imagine SFF PCs are more common for dedicated builds or aesthetic reasons
The boards that do exist can.
This is a time of mini and slim desktops, sold by the millions to people who don’t expect to open or pr modify them. People who will buy a motherboard are people who are building or modifying their own, so want the flexibility and options
I put a 140mm fan on the DeskMini A300 to drive the 5700G, can now play Satisfactory in medium settings. The whole SFFPC (Small Form Factor PC) scene is about modding.