Double injection key caps ,never rub off. Using light switch design, key life up to 100 million times. Support 6 key and N key mode self-selected, online banking password entry is not aected. Intelligent dormancy mode: the host is in hibernation or standby mode, the backlight function is closed, and the mode is restored after the host starts. The keyboard humanization design, with Fn to add a series of common shortcut function keys. Supporting USB online upgrade main control program.