【Negotiations for price reduction are accepted within an acceptable range】 This is a 78-key split keyboard. It can also be used as a single unit. It's expanded to 122 keys with Fn + any key. It has white keycaps and white & orange lighting. (Fn+1 toggles the light on/off, Fn+2 or 3 adjusts the brightness, Fn+4 switches the light mode) It uses a USB-A wired connection and is compatible with both WIN/MAC.