this keyboard be the best I have work with in a long time and its what I suggest to all my family and client especially if they be always on the computer . its style be very good and its funtionality be great , I have be usee this keyboard for more than 6 month and even though I have put in 72 hour straite behind the system in one go it keep my hand from get tired as they usually do when do extra long time at the computer . all in all its a good product and one that should be consider seriously .