deskthority

By "standard", I mean that all of the keys are what they would be on an ASCII keyboard and that the layout and spacing is exactly the same, with all other keys in the function layer.

I think all the 60% keyboard I've looked at have had at least some small difference, which makes things awkward for switching back and forth between keyboards.

Pretty sure the same section of a regular full size keyboard but with tilde replaced with esc.

But yeah there are a lot of keyboards with different spacing.

Poker.

ASCII isn't a layout, by the way. You mean ANSI US.

Also, KC60, KBP V60 Mini, Ducky Mini (and Pok3r ofc). All use the main part of the standard 104-key keyboard, but generally use different Fn layers. Some are programmable, some are not.

Usually, the right Windows and/or Menu key has been replaced with a Fn key(s) to enable the Fn layer.
So that's a difference, obviously.

BTW, I think that the Menu key could have been made into a dual-function key though: Hold and press another key: Fn; Hold and release (without pressing another key): yield a Menu Down event and a Menu Up events in quick succession.
This is because in all programs I have seen, the function bound to the Menu key activates only on the release anyway. Although, I don't know anyone who ever uses the Menu key.