Razer BlackWidow V4 75% Mechanical Hot-swappable, Small, Sturdy, and Media Keys with Chroma MF Roller White Tactile Orange Wrist Rest Switches: From the producer Play the Video Change out. Change to a new one. Go for it. White Edition Razer BlackWidow V4 75% The Razer BlackWidow V4 75% is a small, hot-swappable mechanical keyboard that uses Razer Chroma RGB to provide more customization and immersion for your enthusiast needs. From within