Logitech G105 Gaming Keyboard Long-life blue LED backlighting: Select from two brightness levels to easily see keys in the dark 6 programmable G-keys: Configure up to 18 unique functions per game, including single key presses, complex macros or intricate Lua scripts* (*Requires software installation) Multi-key input: Press up to five keys at once to perform multiple complex actions without interference or ghosting Game/desktop switch: Disables the Windows/Context Menu keys to prevent accidental game interruptions Made for PC gaming: Compatible with Windows 8, Windows 7 and Windows Vista