Razer BlackWidow X Chroma Gunmetal Edition (RZ03-01762100-R3M1)

Macro Keys: Fully programmable keys with on-the-fly macro recording
Switch: Razer Mechanical Switches with 50g actuation force
Lifespan of Switch: 80 million keystroke life span
RGB: Chroma customizable backlighting with 16.8 million color options
Others: Military grade metal top construction, Cable management routing