PowerKey PRO PKP-2200-SI Compact 4 Button Keypad

Aftermarket third party PTI VP Keypad PCB , Compatible Board

1x4 Matrix Extension Keyboard 4 Key Membrane Switch Keypad Keyboard

PowerKey PRO SI Series Removable Inserts / Motorsport Kit (MRCLSI12MSWT)

2 button blue keypad membrane

Matrix Array 16 Keys 4*4 Switch Keypad Matrix Keyboard Module for Arduino

3x4 Matrix Extension Keyboard 12 Key Membrane Switch Keypad Keyboard

1 button yellow keypad membrane