OEM is much taller.
OEM = original equipment manufacturer, and refers to the (often cheap) keycaps that the keyboard manufacturer puts on a new keyboard in the factory.
This is great, thanks for the pictureShow Image(http://i.imgur.com/kFxqOm8.jpg)
For more, see https://geekhack.org/index.php?topic=68550
Aren't there different OEM profiles, or is it all a standard?There's probably variation but they're all in the same general ballpark, I think.