Jrifedptry Mechanical Numeric Keypad Brown Switch Wired Gaming Keypad Crystal Case White Backlit 21 Keys Mini Numpad Keypad

Compare with the other standard keypad, the 21 keys extended some keys at the top, contain Esc,Tab,Back Space,and FN keys. The num lock function is of any other keyboard that are currently connected.The mechanical switch keypad can a fast response. Mechanical numberic keypad has 3 backlight model and 6 backlight brightness can be adjusted. By simultaneously pressing the FN key and another key, you can change the backlight and brightness.