Amazon.com: Logitech USB Unifying Receiver, 2.4 GHz Wireless Technology, USB Plug Compatible with all Logitech Unifying Devices like Wireless Mouse and Keyboard, PC / Mac / Laptop - Black : Electronics
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Amazon.com: Universal USB Receiver Replacement for Dell Wireless Keyboard Mouse KM714 KM717 WK717 KM636 WM514 WM326 WM126 WM527 : Electronics
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