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Motherboard provides more USB ports than B450? (lemmy.ml)
submitted 11 months ago by glibg10b@lemmy.ml to c/buildapc@lemmy.world
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cross-posted from: https://lemmy.ml/post/9114359

My motherboard provides 4x USB 3.2 Gen1 ports for rear I/O and another 2x USB 3.2 Gen1 ports for front I/O (through the header), but my chipset only supports 2x USB 3.2 Gen1 ports. Where is the support for the other ports coming from?

Motherboard Wikipedia
Motherboard rear I/O: 2x USB 2.0 ports, 4x USB 3.2 Gen1 ports, 2x USB 3.2 Gen2 portsMotherboard headers: 4x USB 2.0 ports, 2x USB 3.2 Gen1 ports Wikipedia B450 chipset: 6x USB 2.0 ports, 2x USB 3.2 Gen1 ports, 2x USB 3.2 Gen2 ports

The motherboard is an ASRock B450M Steel Legend

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[-] SomeoneSomewhere@lemmy.nz 4 points 11 months ago

I think some of the USB ports come directly from the CPU, others come from the chipset. This allows the dirt-cheap A300 boards to operate with no chipset at all but still have a couple of USB ports, and likewise with laptops.

this post was submitted on 10 Dec 2023
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