The wired mechanical keyboard has LED backlight, which makes your keyboard cool and stylish.It is plug and play, which is convenient to use.It is compatible with USB 1.1 and USB 2.0 and compatible for Windows 2000/XP/ME/Vista/7/8/10, for Android, for Linux and for iOS.Item Name: Wired Mechanical KeyboardMaterial: ABSType: K24Compatible Systems: for Windows 2000/XP/ME/Vista/7/8/10, for Android, for Linux, for iOSInterface: USB 2.0, USB 1.1Number of Keys: 21Keyboard Service Life (Times): 50 Million TimesResponse Rate: 100HzKeyboard Button: Red/BlueFeatures: Wired, Large Compatibility, Computer AccessoryCable Length: 1.5m/59.06" (Approx.)Size: 13.2cm x 8.6cm x 4.2cm/5.2" x 3.39" x 1.65" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Wired Mechanical Keyboard1 x User Manual