Volume Contros : FN PRTSC/SCRLK/PAUSE Programmable FN keys via Logitech G HUB
Requirements : Windows® 10, Window 8.1, Windows 8, or Windows 7 USB port (for keyboard) Second USB port (for USB passthrough port) (Optional) Internet access for Logitech G HUB Requires G HUB 8.98 or higher for advanced settings.