How to Pair Logitech Mouse or Keyboard to USB Receiver - YouTube
Amazon.com: Logitech 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
Original Logitech Empfänger Sender Receiver für Tastatur Keyboard G915 | eBay