http://www.profaceamerica.com
Introducing the Pro-face EZ Numpad.
• Switches between input & function keys.
• Extends screen lifetime. Saves screen space.
• Allows tactile feedback to operator.
• Operates in harsh environments.
• Mounts easily with a USB cable and 22mm mounting hole.
For more information, visit:
http://www.profaceamerica.com/en-US/content/ez-numpad