this sale has been extended until the 26th. but for some reason the rebate on the amazon website is the older one, so you need to use the rebate for here
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i also found one person commenting on how well it is for gaming. so i guess there is a risk it would not do very well. although would be nice to get some confirmation from others about it
"I found it had noticeable delay compared to my old logitech wireless keyboard, and when I was gaming, it didn't pick up some combination keys. I tried different USB ports and really close range but still had the same problem.
I had to return it to Amazon. I read the review on newegg, only 1 person had the same problem."
edit: rebate link see below