Nixeus Moda v2 Compact Mechanical Switch, Clicky Tactile Bump Feedback Keyboard for Windows & Mac (MK-BL15) Nixeus Certified Mechanical Switches (Blue Switch) Key Switch Rating: Up to 50 million keystrokes for durability and long life Ten Keyless design for ergonomic use Compatible with Windows XP/Vista/Windows 7/Windows 8/Mac OS 3 Year Limited Warranty with free technical support