Curated DIY electronics kits for common modifications, like adding USB-C to keyboards.

The user tried to tweak their keyboard by adding a female USB-C port but accidentally used the wrong component (a USB-C host/upstream port instead of the required device/downstream port). This mistake fried the USB-C sockets on the keyboard, highlighting a common and costly issue for hobbyists and DIY electronics enthusiasts who might not be aware of the critical differences between USB-C port types.

There's an opportunity here for a product that eliminates this risk and simplifies the modification process: a curated, pre-verified kit.

For example, a 'Safe USB-C Keyboard Mod Kit' would be perfect. This kit would include:

  1. A pre-vetted female USB-C device port (guaranteed to be the right spec for peripheral use).
  2. Appropriate gauge, color-coded wiring, possibly pre-tinned or with a small breakout PCB for easier soldering.
  3. Simple, clear, illustrated instructions specifically detailing the installation for keyboards, including pinouts.
  4. Heat shrink tubing for a clean and safe finish.

This product provides immense value by:

  • Preventing costly damage: It saves customers from frying their keyboards or connected computer ports.
  • Saving time: It eliminates the need for extensive research on the correct USB-C components and wiring.
  • Reducing frustration: It offers a straightforward path to a successful and safe modification.
  • Empowering users: It allows hobbyists to confidently upgrade their peripherals.

These kits could be marketed and sold for around $15-$25 on platforms catering to electronics hobbyists, keyboard enthusiasts, and DIY communities (e.g., Tindie, Etsy, specialty keyboard part stores, Adafruit/SparkFun). Given the low cost of individual components when sourced in bulk (USB-C connector, wires, simple PCB), there's a significant profit margin potential, while still offering a high-value solution to a common and expensive problem.

Origin Reddit Post

r/askelectronics

Keyboard fries USB-C sockets after a few minutes

Posted by u/y5buvNtxNjN60K406/13/2025
Cat chewed the cable on my Ducky keyboard (DK2108SZ), so I opened it up to solder in a female USB-C receptacle so I could use a detachable replacement. I ordered [these guys](https://www.ama

Top Comments

u/StopInevitable
oh my! that's not good.. blame it on the device?
u/y5buvNtxNjN60K4
(Answering my own question) From Amazon reviews: "If you're reading this: the female ports are probably not what you want. Noted by other reviews, these are configured to be host or upstrea

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