I was still using the keyboard from an iMac G3 up until 2019. It felt fun to type on, and had a passthrough USB which was very convenient for low-power devices.
It’s such an obvious little quality of life improvement, and yet the only other board I’ve come across with the feature is the HHKB Pro 2 (Pro 3 drops the hub) and some variants of Das Keyboards.
[0] the swappable USB cable is so handy! Just leave one plugged into each machine.
I haven't booted since maybe 2005 and I'm starting to wonder if there is battery on the motherboard I should remove.