Do all of these send number pad key codes? I had an eye on the Leopold 21-key but apparently it just sends the number row key codes - so how is it for the suggestions here?
I've had the Adesso for a few years, it's built like a toy. It serves it's purpose, but it could certainly be better in many ways.
The Leopold 210TP is reported to use the scan codes for the number row, not the numpad scan codes like it should, so it may interfere with any macros you have.