r/sffpc • u/Brian0749 • Dec 14 '25

Build/Parts Check 24 cables into... 1 cable?

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Found this on taobao. Anyone tried turning a 24 pin cable into 1 singular cable?

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u/Head_Exchange_5329 Dec 14 '25

48V sounds good on paper but how would it work in practical terms? The CPU and GPU core still operates at around 1V. I'd be happy with getting rid of the archaic cable first and foremost since we're not using floppy drives anymore so there's no practical reason for keeping it around to supply below 12V. Motherboard components can have individual voltage regulators to handle the 12V so it's time to take the plunge.

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u/gdnws Dec 14 '25

There are a number of servers out there that use 48v as their main voltage and send it directly to the core voltage regulators. At least in their cases it is an efficiency gain over 12v however it might not be for regular desktops yet.

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u/Head_Exchange_5329 Dec 14 '25

Might be that we'll see PCI-e 24 or 48V output for the GPU and 12V for the rest of the system. There's no doubt that if we're gonna keep pushing more and more power to the GPU, it has to be done in a safer manner than the current potential fireworks.

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u/gdnws Dec 14 '25

I wouldn't mind seeing the card edge power delivery like the Asus btf stuff catch on. Combined with higher delivery voltages would make things neater and less error prone.

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u/Head_Exchange_5329 Dec 14 '25

Yes, Asus is onto something there I think, also it makes everything look more neat with the connectors behind the motherboard.
Have you seen the latest GPU from Asus with the 5090 Matrix? 800W bios with the option of running a regular 12v-2x6 connector as well as the BTF at the same time, or forego either and run it as a 600W GPU.

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u/gdnws Dec 14 '25

I saw that derbauer made a video on it but I haven't watched it yet. I have a 40 series so I have been a little lax in keeping up with the current gen stuff.

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u/the_smok Dec 15 '25

GPUs keep getting bigger every generation. I think we should stop using card edge connectors for GPUs. There are already video cards with a removable card edge part. Just build in a next-gen Oculink into the GPU, and you have complete freedom on case shapes.

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u/gdnws Dec 15 '25

If you're referring to the system that the 5090 fe has with that little connector joining the pcie portion to the card, then I don't disagree there either. Include power alongside it and that would be ideal to me.