Connecting a Logitech device to your Unifying Receiver (Windows and Mac) - YouTube
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
Logitech Unifying Receiver for Connecting Multiple Devices
How to pair Logitech receiver using Unifying – How To HelpDesk
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
How to connect or add a new keyboard or mouse to Logitech Unifying receiver - YouTube
Logitech Unifying Receiver for Connecting Multiple Devices
Wireless Dongle Receiver Unifying Usb Adapter For Logitech Mouse Keyboard Connect 6 Device For Mx M905 M950 M505 M510 M525 Etc - Mice & Keyboards Accessories - AliExpress