Domineering and unique shape, elegant and fashionable appearance Wide comfortable hand rest and keyboard into one, simple but fashionable. Heavy keyboard, sensitive key, nice hand feeling, long key life, up to 50 million times There are 4 game high-end axis--black, red, tea, cyan--to choose according to players' preference Specially add red and blue LED full keyboard backlight, two sides backlight, and indicator lights for logo separately control/color correspond mode, better show its elegance and humanized functions. Total 25 user-defined keys in 5 groups each having 5 keys, cooperated with drive, every custom key get more than 40 kinds of functions to choose from. Separate configuration of file conversion key, freely change among 5 modes in turn, cooperated with logo light, five configuration files with 5 corresponding indicator lights. Humanized design keyboard, detailed explanation of a series of shortcut function keys cooperated with Finite Key Four-level adjustable backlights and backlight dormancy, more convenient and friendlier at night, backlights can be adjusted Lockable/un-lockable WIN key and corresponding LED light indicators(at rightmost of keyboard) Unique WIN key lockable function and micro record function, five indicating lights: Number Lock, Caps Lock, Scroll Lock, WIN Lock, REC. Equipped with plate-load memory, freely conserve user-defined functions into keyboard Connector: USB Keyboard size: 19.42(L)x8.33(W)x1.37(H) inch Keyboard weight: 3.10lbs Key number: 110(including 104 normal keys, 5 self-defined keys, 1 mode switching keys) Key route: 4.0mm, pre-travel: 2.0mm Key force:58.9+/-14.7g(black axis) 44.1+/-14.7g(red axis) 44.1+/-14.7g(tea axis) 58.914.7g(cyan axis) Working voltage/current: DC 5V/<300mA System support: Windows 98SE/ ME/ 2000/ XP/ Vista/7/ 8 Certification: FCC / CE