AULA Sapphire Mechanical Keyboard with Blue Switch, Ergonomic Keyboard Gaming Keyboard and Computer Keyboard Ergonomic design, High quality and minimalist style Large and comfortable palm rest to reduce hand fatigue AULA Mechanical Blue switch with ultra-long lifetime durability, Perfect for all gamers User-friendly design with a set of shortcut function keys cooperated with the FN key Lock/ unlock function for Windows key to avoid miss clicks/ distractions during gaming Compatible SYSTEMS: Windows 10, 8, 7, Vista and Mac OS