Bluetooth Connectivity Technology Keyboard Description Mechanical Color Purple Windows 8 Operating System Number of Keys 143 The keyboard backlight supports the RGB colors Learn more About this item PBT Keycaps: With high quality PBT material and anti-grease coating, these keys provide top-notch durability and excellent keystroke feel. less prone to dirt accumulation. The thickness is about 1.5mm, the quality is not lost on those expensive keys. Packed in a blister and in a cardboard box, this is an absolutely valid set of keys. Sublimation Keycaps: Heat sublimation technology allowed the color to penetrate the keycap, the service life of up to ten years will not fade. XDA Profile: The XDA profile ball cap looks great and increases the contact area between the cap and the fingers, improving typing comfort. Widely Compatible: 134 keys with large input can be used for most ANSI/ISO MX switch mechanical keyboards, suitable for 60%, 75%, 80%, 85%, 100% US/UK layout mechanical keyboard. Warm TipsOnly sell keys. If the keycap is missing or damaged, please contact us.This set of keycaps is not suitable for all mechanical keyboards, in order to avoid inappropriate situations, if you are not sure whether it is suitable for your keyboard, please consult customer service for compatibility before placing an order.