What can someone do if they've lost the wireless USB connector to their Logitech keyboard and mouse? - Quora
Buy 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 Online in Indonesia. B072JW9LT8
Genuine Logitech Unifying Receiver-Wireless Mouse/Keyboard USB Dongle-6 Devices | eBay
The Art Of USB Dongle Repair | Hackaday
Zone Wireless Plus Unifying + Audio Receiver
FreeKB - Logitech Resolve "There is no Unifying receiver plugged into your computer"
New Logitech Unifying USB Receiver for M905 M600 M525 Mouse & K350 K750 Keyboard | eBay