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 USB Receiver for Wireless Mouse and Keyboard, 6-Device (910-005235) | Staples
Logitech latest Version Genuine Tiny Unifying General Receiver Dongle Connect up to Six Devices for Logitech mouse mice keyboard|unifying receiver dongle|logitech donglemouse dongle - AliExpress
Logitech Multi-Device K780 Keyboard and M720 Triathlon Mouse Review
Connect multiple Logitech wireless devices using same USB receiver
Zone Wireless Plus Unifying + Audio Receiver
Pairing two Logitech Devices with the same USB Receiver (Windows 10) - YouTube
Logitech Unifying Receiver for Connecting Multiple Devices
Logitech Unifying Receiver Dongle for Keyboard and Mouse M325 M315 M515 M510 - Newegg.com
What devices can I pair with my Logitech unifying receiver, other than a mouse and keyboard? - Quora
How to pair more than one device with a Logitech receiver
Logitech Unifying Receiver for Connecting Multiple Devices