X-keys Programmable Keypads
The X-keys was known as Fentek. I think the company may have changed hands over the years. Their products exist in 2000 or earlier.
X-keys 16 programmable keys
This is probably the earliest x-keys product, i think it exist in 1990s.
- Rubber dome keyswitches
- 24 Programmable Keys
- Backlighting: Red and Green
This one is for, if you want to be the master of the universe. and there are people like that. See: One Thousand Function Keys