Delux KA190U is a USB Multimedia Keyboard. It features a flat key design. It has 104 keys and 12 FN combined keys. It has a unique appearance. It is connected through a USB2.0 interface. It supports plug-and-play for quick installation. This keyboard is compatible with Windows8 /Windows10/Mac OS. It is a great choice for official use. It is very comfortable and it has a weight of around 510g. The Delux KA190U USB Multimedia Keyboard has a 1-year warranty.