This new model adopted Outemu mechanical blue switch that has a crisp and clear click sound with the strongest paragraphs and machinery feeling. The mechanical keyboard has programmable six area-color back-light. 18 kinds of lighting effects can be chosen as users wish. The key-caps are plug-able, but switches are fixed with PCBA by Wave soldering. Double injection key-caps with transparent characters.This robust keyboard has rich multimedia keys with laser inscription, the fonts will never be faded.