Question about Panasonic Rugged USB Keyboard, PCPE-MMRK01G

Description from Panasonic:

Compatible with all Toughbook and Toughpad products with a suitable USB port.
Ideal for mounting in vehicles and other hazardous environments where you need a keyboard to provide the same performance as the Toughbook or Toughpad.

- Robust, durable and reliable design and construction
- Silicone sealed and lockable for easy cleaning and security
- Easy to clean with a damp cloth, soap and water, disinfectant or <10% bleach solution
- Fits most standard mounting systems
- Excellent tactile feedback
- Lockable for easy cleaning
- Variable red backlight