Genuine Tiny Unifying Usb Receiver Dongle For Logitech Mouse And Keyboard Can Connect Up To Six (6) Devices W/ Unifying Logo - Keyboards - AliExpress
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 Keyboard K400r K400plus Unifying Mirco Dongle Receiver USB | eBay
6 Channel Wireless Dongle Usb Receiver Adapter For Logitech Unifying Mouse Mx M905 M510 Keyboard K400 Repair Accessories Parts - Instrument Parts & Accessories - AliExpress
Replacing Your Wireless Mouse / Keyboard Receiver - ComeauSoftware.com
How to Find a Logitech USB Receiver Replacement for your Wireless Mouse and/or Keyboard - YouTube