Backlit keys (because the gamer plays in the dark), visual differentiation of the famous WASD keys (they are gray while the rest is black; it's simple, just had to think about it), possibility to record easily keystrokes (and download from the Logitech website profiles corresponding to the most known games), storage for too long cables at the back of the keyboard (because the gamer has other things to do than waste time tangled in cable surplus ) ...
In addition to all these small improvements, the keyboard itself is very well: typing comfort, stability, finish.
In conclusion, a great product if you play a lot of computer you want a bit more than just basic keyboard of ordinary people, but you do not want to spend a fortune in the competition equipment .
