Plug and Play: One step to connect the Number Pad with Type-C cable (included), easy to offer you a high speed and more stable transmission. Wired and computer connection,it supports NumLock, ESC, Tab etc. With shortcut key which can open the computer calculator directly. And the tenkeyless design with a detachable USB-C cable meets your needs to typing anywhere. Mechanical Red Switch: Linear switch provides smoother, quieter and faster tactile feedback, especially popular in games. The red switch is also the most suitable switch in the office. Translucence Ultra-minimalistic Look: This Pudding mechanical 21 keys numeric keypad is with unique pudding keycap and matte SLIGHT translucent bottom case, when the RGB is off, they give your keyboard an incredibly sleek and clean feel. When RGB is turned on, the frosted walls brings out the brilliance of RGB in every direction. Vibrant and rich RGB: A variety of preset backlight modes can be freely selected through keyboard hotkeys. To maximize your desktop ambience, choose your own preferred LED backlight mode. Universal Compatibility: This number pad is suitable for laptop users,banking, financial securities, business workers or Used with 87 keyboards, 82 keyboards, 68 keyboards, 61 keyboards and other keyboards without numeric section. (Mac OS X v10.6 or later; Windows 7/8/10/XP/Vista). We provide responsive after-sales, any problems, please feel free to contact us.