This product is either discontinued or we cannot get that from suppliers.
Garmin 010-12255-00 GNX Keypad, Voltage range: 9-16 V (from NMEA 2000), Power consumption: 0.2 W, Mounting options: Flush, NMEA 2000® certified: Yes, NMEA 0183 compatible: No, Auto-on: Yes.
Control a compatible GNX instrument display from a distance with this push-button keypad interface which can be fixed-mounted near the helm. It features 4 buttons dedicated to preset configurations.