【Suitable for Mac&Windows】The built-in powerful System identification chip can automatically adjust some key functions of the numpad keyboard to match the Windows or Mac OS.Calculator, left parenthesis, right parenthesis only applicable to WIN systems,F13-F15 is customizable as your preferred shortcuts via system setting in Mac OS. | 【Equipped with more shortcut keys you need】 The 34-key numeric keypad is equipped with several commonly used shortcut keys, including Esc, Tab, Back Space, Delete, Home, Page up, Page down and four arrow keys. The wired number keypad is more efficient and stable, plug and play. Meet all you need of a number keyboard! | 【Hot Swappable Mechanical Number Pad】You can hot-swap the numpad with almost all of the 3pin and 5pin MX style mechanical switches on the market without soldering required. while the pre-installed mechanical tactile brown switch providing unrivaled tactile responsiveness with up to 50 million keystroke lifespan. | 【Multi-layer Silencing Structure Design】To maximally avoid hollow sound,Kisnt 34 key number pad keyboard is designed with poron foams, silicon switch pad and the bottom sound absorbing foam. These foams are placed respectively at the bottom of the case and between the PCB and PC plate. so the typing sound is more solid and hollow sound is greatly eliminated. | 【PBT Dye-Sub Keycaps&White Backlit Effects】Continuing the 17-key numeric keyborad that was already available before, the 34-key numeric keypad also features PBT keycaps for enhanced texture and durability. Made of thermal sublimation technology, the characters will not fade over time. White backlight to create a different atmosphere for use, you can also choose other static backlight modes.Please note: the lights are not visible through the keycaps.