For Korea Customers: we need your personal customs code + Korean name according to Korean customs clearance requirements. Enter this into your order notes.
For Japan Customers: we require your personal information (Japanese name + Japanese address) as required for Japan delivery services. Put this in your order notes.
For Brazil Customers: Chile and Colombia, we need to provide your CPF (format: xxx.xxx.xxx-xx) or the company's CNPJ (format: xx.xxx.xxx/xxxx-xx). Otherwise, we will not be able to ship your package.
For mainland China Customers: Macau SAR and Hong Kong SAR, we need a Chinese address, if you have a Chinese name, please fill in the Chinese name.
You can check Shipping Policy for more information.
The CoolKiller CK21 is a versatile 2-in-1 device that functions as a mechanical numeric keypad when connected via the included cable. Disconnect the cable, and it transforms into an 18-key portable mechanical calculator. Perfect for both productivity and quick calculations, all in a sleek, transparent design.
The CoolKiller CK98 features a sleek white-LED backlight that enhances the keyboard's visibility in low-light environments. The clean, bright lighting creates a minimalist aesthetic while providing clear key visibility.
The CoolKiller calculator is a hot-swappable mechanical calculator with custom ice blade linear switches. Easily swap out the stock switches for any 3-pin or 5-pin MX-style switches without soldering, allowing for full customization.
The CoolKiller CK98 has a 1500mAh rechargeable battery for long-lasting power. With full-key anti-ghosting and four non-slip pads, it ensures stability and efficiency. Compatible with Windows, macOS, and Linux, it works with PCs, desktops, and more.
Number of Keys: 18
Lighting: White
Hot-swappable Support: Yes
Connection port：USB Type-C
Connection Mode: USB
Connected devices: 1
Gave this as a birthday gift to my sister—she loves it!! It pairs perfectly with her keyboard. It has a nice weight to it, and using it just puts you in a great mood 🤩
The actual product is truly beautiful! My child keeps playing with it and can't put it down. It looks even more stunning with the lights on. 😍😍 Great job!
It arrived swiftly and sounds delightful and is a dream to use. Just a shame the lights aren't RGB to match the main keyboard
CoolKiller CK21 Hot Swappable Mechanical Calculator Numeric Keypad Num Pad
CoolKiller CK21 Hot Swappable Mechanical Calculator Numeric Keypad Num Pad
