Characteristics and Interoperability 104-Key Mechanical Gaming Keyboard with Custom Mechanical Switches (Blue Switch): Designed for increased longevity, responsiveness, and durability. Quick mechanical keys featuring tactile bump feedback, accurate actuation, audible click sound, and medium resistance. Features of Keyboards Complete numeric keypad and full-size keyboard with 104 standard keys Every single one of the 104 keys has an anti-ghosting feature that prevents conflicts. 12 "F" keys and Dual Action Multimedia You can disable the WIN key while gaming. Tested to withstand 50 million keystrokes, ultra-durable keys Included is a keycap puller tool in case you need to clean the keyboard after extended use or just want to change the caps to add some flair. Red LED mechanical keyboard; K551-1 Redragon mechanical gaming keyboard with LED backlight