The Advantage2 features Kinesis' patented Contoured keyboard design and low-force mechanical key switches to address the major risk factors associated with keyboarding for maximum comfort. The fully-programmable Advantage2 features Kinesis’ SmartSet Programming Engine that allows you to customize the keyboard’s layout without installing any clunky software or special drivers. SmartSet works on all major operating systems and enables users to easily create, view, edit, share and backup their custom layouts. The Advantage2 base model (KB600) features low-force, tactile Cherry MX Brown key switches for the most ergonomically correct typing experience. Brown switches offer tactile feedback to minimize unnecessary key impact. The Advantage2 uses generic HID (human interface device) drivers provided by the operating system. It can be operated and programmed without any special drivers in most environments supporting USB devices, including the following operating systems (must have an available USB port): Windows 7, 8 and 10, Mac OS 8.6 and higher (Not compatible with non-US layouts), Linux and Android. Package Contents: Advantage2 keyboard, Quick Start Guide, 4 extra Mac and PC keycaps and keycap puller.