I would call it a "gaming keypad".
The Nostromo was previously made by and branded by Belkin. There were a few earlier models with fewer keys, and less features.
The other gaming keypads that I know of, are:
Saitek PRO GAMER - Command Unit,
ZBoard Fang,
Cyber Snipa.
Delux T9
Genius ErgoMedia 500
Logitech G13
Revoltec Flightpad
Wolf king
A4Tech X7-G100