Features:If you need to set it in MacOS, please set it in for Windows before you can use it on it.Onboard storage, the settings are saved in the keyboard, and there is no need to set again when changing the device.The button function can be set by oneself, there is a special setting program, and the setting can be repeated.And Onboard storage, the settings are saved in the keyboard, and there is no need to set again when changing the deviceUSB interface, for HID standard keyboard, plug and for play without driver.Note:The switch may come loose during transport, just plug it back in. However, the Outeum switch doesn'for t support hot-swapping, so the mini doesn'for t support hot-swapping.brand new and high qualityFine workmanship and perfect style, Outeum Shaft & RGB LED, more gaming experience, and cool feeling.Specifications:Material: acrylicKeys: 3pcsInterface: type-cAxle: Outeum red switchCurrent and voltage: for DC 5V1AColor: black, white (optional)Size: approx. 99.2x35.2x37mm3.91x1.39x1.46inNote:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package includes:1 x Keyboard1 x usb data cable