Amazon.com: Logitech Unifying Receiver USB Dongle for Logitech M185 Wireless Mouse and Keyboard : Electronics
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
Logitech Unifying receiver - Wikipedia
Unifying USB Wireless Receiver Dongle for Logitech Performance Mouse & Keyboard | eBay
1pc Wireless Dongle Receiver Unifying USB Adapter For Logitech Mouse Keyboard Connect 6 Device For MX
Amazon.com: New Logitech Unifying USB Receiver for Mouse MX M905 M950 M505 M510 M525 M305 M310 M315 M325 M345 M705 M215 : Electronics
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
Logitech Compact Wireless Mouse, 2.4 GHz with USB Unifying Receiver, Optical Tracking, Magic Night - Walmart.com
Logi Bolt USB Receiver for Multi-Computer / Device Use