I purchased the Logi K545 keyboard/mouse combo and they came with the USB receiver missing in both. I called their customer support and they said it was an Amazon problem versus a quality issue on their part. My box was not damaged, was never opened and I told her that. She still said that it was an Amazon problem. Then I looked at other reviews on Amazon and there were many where others had also been left out. Now I see on this site that Logitech has many issues.
