This is a 3D printing base made from selected ABS specially for 12E4 keyboard. It’s tailored to 100% fit for 12E4 with protection of motherboards as well as certain anti-slip ability. Pad design for wrist relief from fatigue of long-time usage.
Customized color and logo/characters are supported. ODM base is also welcomed for bulk production.
To install 12E4 on this base, please remove the bottom circuit board of 12E4. That is the third board, from top to bottom which actually there is no circuit on it.