Logitech C-U008 Nano Unifying Receiver USB Dongle for Wireless Mouse K
Logitech Unifying receiver - Wikipedia
Logitech Unifying Receiver for Connecting Multiple Devices
Amazon.com: Logitech C-U0007 Unifying Receiver for Mouse and Keyboard Works with Any Logitech Product That Display The Unifying Logo (Orange Star, Connects up to 6 Devices) (C-U0007) : Electronics
Is there a difference between Logitech's 'USB Nano receiver' and their 'USB Unifying receiver' and are the two compatible? - Quora
How to pair more than one device with a Logitech receiver
Solaar' Lets You Manage Logitech's Unifying Receiver on Linux - OMG! Ubuntu
Logitech Wireless Mouse / Keyboard USB Unifying Receiver - Walmart.com
Logitech Usb Unifying Receiver Black 910005235 : Target
File:Logitech Unifying Receiver USB.jpg - Wikipedia