In 2013 or so I bought an iMac.
It came with Blue Tooth keyboard, but I wanted a wired one. So I got one. I liked it.
Last year I built a Windows machine. Hey, I need it for testing game dev stuff. (And Magic Online. Mostly Magic Online.)
But recently, the 7UJM "line" on the keyboard stopped working. Now, I wanted to research a nice keyboard, but I was getting frustrated so I just picked up a cheap USB keyboard from a local place. Plugged it in, keys work. Yay.
Now, I still have my iMac running. So I plugged in the "broken" keyboard. Those "broken" keys work there.
I love technology.