> You might do this to let you have one cable run from your computer/monitor hub and easily switch between different keyboards with USB-C or micro/mini connectors.
And the cable does have a microusb connector, but what I was talking about was the inclusion of some aviation connector right in the middle. Even the post said it was purely decorative.
> What's the idea behind the key coloring on the Adminbook?
The post on the adminbook does talk about the rationale behind the colors:
> To hit the buttons faster, different key colors are used.
> For example, the numeric row is specifically colored gray to visually separate it from the QWERTY row, and NumLock is mapped to the “6” key, colored black to stand out.
> the function keys can be pressed without Fn. These are separate keys that are even divided into groups of 4 using color coding and location.
> That is, it’s an LED above the display, illuminating the keyboard from the top. In this case, it is better than a backlight from below, because it allows you to distinguish the color of the keys.
> Indicators are color-coded.
With regards to:
> I think there's a certain "it's extra bulky and ugly because it looks more functional that way" to both the Adminbook and the 4-pin industrial connector, and that's fine.
I don't think the industrial connector itself is not functional, but rather its inclusion in a USB cable.
On the keyboard coloring scheme of the Adminbook, whether you would use it or not, it definitely can be used to distinguish different key groups. Besides the ones mentioned in the parts I quoted, there's also the light background color for the keypad buttons, the dark background color for the '0', '-', and '=' keys which are used for controlling zooming in multiple applications. The F key is where the nub for your index finger is to quickly position your hand correctly, etc.