Logitech M505 Wireless 2.4G Mouse Red USB Unifying Receiver Tested & Working | eBay
Logitech Unifying Receiver for Connecting Multiple Devices
Replacement Unifying Receiver for Logitech M505 M705 M905 etc mouse new Sh | eBay
Wireless Dongle Receiver Unifying USB Adapter for logitech Mouse Keyboard Connect 6 Device for MX M905 M950 M505 M510 M525 Etc|Mice| - AliExpress
1PC Connect up to Six Unifying Receiver Dongle For Logitech MX M905 M950 M505 M510 M525 M305 M310 M325 M705 mouse keyboard - Price history & Review | AliExpress Seller - HUYUN
Amazon.com: SummitLink Unifying Receiver for Mouse and Keyboard Compatible for Any Logitech Product That Display The Unifying Logo (Orange Star, Connects up to 6 Devices) B083J7DYDT : Electronics