Fast delivery. I ordered one directly from Logitech at its output. He held one week and did not appreciate a drop of coffee on the letters. It went under, it worked but sugar began to freeze the keys. lost lost I spent the liquid for windows and tried to clean .. but then I just shot ... So Amazon, control of another, very fast arrival and since I'm careful when I unfolded on a table that the spring light effect does not push the lower part against a cup that would be close ...