Mechanical gaming keyboard Keys: 87 Switch rating??50 million presses Key Route: 4.0 ± 0.4MM Operationf force: 60 ± 5 G Backlight: 5-color rainbow with 8 lighting modes Interface: USB2.0 Cable length: 1.5M OS support: Windows 7 or newer Features: FN keys for Multimedia function; FN+WIN ,WIN locking function; Anti-ghosting support 29 keys rollover;