Each button is controlled by a separate switch, allowing you to enjoy fast-responding high-end games, ideal for gamers, typists, programmers, writers, etc.Specification:Version: The version printed on one sideColour: BlackMaterial: Aluminum platesConnection: USB CableThe number of buttons: button 104Key life: 500 million clicks lifeRefresh Rate: 1000Hz ofSwitch: Outemu blue / red switchDimensions: 429 X 141 X36 mmPackage Included:1 X Wired Mechanical Gaming Keyboardnote:1. The real color of the item may be slightly different from the picture shows on the site caused by many factors, such as the brightness of the display and light brightness.2. Please allow slight deviation of the measurement data.