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USB-C Mod for Katsukity-Optimize Mini-USB Boards?

Posted: Mon Jul 27, 2026 6:31 am
by Nautilus3DSWear
Hey all,
I have a Katsukity board on an o3DS that works* with some yellowing on the output of the bottom screen, but it's made me a little nervous. Recently if I even barely bump the bottom of the 3DS, it disconnects from my PC.

Does anyone know if there's a USB-C mod to swap off from the Mini-USB, or am I stuck in DC purgatory? :oops:

Thanks...

Cheers everyone.

Re: USB-C Mod for Katsukity-Optimize Mini-USB Boards?

Posted: Mon Jul 27, 2026 8:43 am
by Elysium
If you want to use the same cutout: https://www.amazon.com/dp/B0DRP5YS5L

If you want to replace the charge port: https://shop.giltesa.com/product/ninten ... onnection/

Re: USB-C Mod for Katsukity-Optimize Mini-USB Boards?

Posted: Mon Jul 27, 2026 1:58 pm
by Nautilus3DSWear
Elysium wrote: ↑
Mon Jul 27, 2026 8:43 am
If you want to use the same cutout: https://www.amazon.com/dp/B0DRP5YS5L

If you want to replace the charge port: https://shop.giltesa.com/product/ninten ... onnection/
Thanks Elysium! One more question: do you know where I can find the pinouts for the 3DS Capture Card to make sure I don't cook it?

Thanks. :D

Re: USB-C Mod for Katsukity-Optimize Mini-USB Boards?

Posted: Mon Jul 27, 2026 6:40 pm
by loopy
Elysium wrote: ↑
Mon Jul 27, 2026 8:43 am
If you want to use the same cutout: https://www.amazon.com/dp/B0DRP5YS5L
Cute little connector. I might pick up a few.
I would find a way to secure it better though, it doesn't look very stable.

Re: USB-C Mod for Katsukity-Optimize Mini-USB Boards?

Posted: Mon Jul 27, 2026 10:47 pm
by Elysium
Nautilus3DSWear wrote: ↑
Mon Jul 27, 2026 1:58 pm
Thanks Elysium! One more question: do you know where I can find the pinouts for the 3DS Capture Card to make sure I don't cook it?

Thanks. :D
Here. ID is not connected or used.

If you use the Amazon USB-C ports, you should solder the shield to the pads (red spots in image) to help keep it secure, assuming you didn't rip them off.
Image