Textured bumps outline a protrusion on
the bottom of the RPG Keys keypad
to help support the user's palm.
Kubota takes strides to dress up the SpeedKeys’ appearance; the keypad is coated in silver paint, taking on a faux brushed metal appearance. Conversely, the RPG Keys design is a bit boxier and more utilitarian. The black plastic base sits almost square, and sports blocky, protruding buttons.
A substantial protrusion sits, centered, at the bottom of the RPG Keys to help support the user’s palm. The textured coating sports a row of raised plastic dots that helps ensure the user’s hand doesn’t slip, and act as a guide by feel.
The defined grooves between buttons on the RPG keys are ideal for dexterity and general key location when you're focused up on your screen, though the deep cavities do introduce the possibility for something –- dust, dirt, liquid, etc. -- to get under one of the large RPG buttons. Since the large RPG buttons don't pop-off entirely like the SpeedKeys (just the top label cap), it would be difficult to get under the key to clean it.
The distinction in design and visual approach employed by both Kubota and RPG Keys is consistent throughout the two products, continuing beyond the physical hardware to the software design as well.