Authentic Razer Viper Mini. All items are authentic. Orders will be coming from China. Please anticipate longer delivery times as compared to buying locally. Thank you for your interest in our product and happy shopping! Faster Than Traditional Mechanical Switches: Razer Linear Optical switch technology uses optical beam-based actuation, registering key presses at the speed of light (15-30% shorter actuation distance than other linear switches at 10 mm) Ultimate Personalization & Gaming Immersion with Razer Chroma: Fully syncs with popular games, Razer hardware, Philips Hue, and gear from 30+ partners; supports 168 million colors on individually backlit keys Quality, Aluminum Construction: Covered with a matte, aluminum top frame for increased structural integrity Oil-Resistant Doubleshot PBT Keycaps: Made of textured, high-grade PBT for a more durable and textured finish less prone to long-term grime buildup Fully Programmable Macros: Razer Hypershift allows for all keys and keypress combinations to be remapped to execute complex commands