Unifying USB Wireless Receiver for Logitech Mice 570 T620 MX master M950T | eBay
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 Mouse - Pairing with Original Non-Unifying Receiver - YouTube
How to Pair LOGITECH Performance MX mouse with non-Unifying Receiver (for PC) - YouTube
New Logitech C-U008 Unifying USB Receiver MX M215/305/310/315/325/345/505 & More | eBay
What is Unifying? - Logitech
Logitech Unifying Receiver for Connecting Multiple Devices
Amazon.com: New Logitech Unifying USB Receiver for Mouse MX M905 M950 M505 M510 M525 M305 M310 M315 M325 M345 M705 M215 : Electronics
Logitech's Unifying-equipped Performance Mouse MX and Anywhere Mouse MX track on glass | Engadget