Unifying Receiver for Mouse and Keyboard Compatible for Any Logitech Product That Display The Unifying Logo (Orange Star, Connects up to 6 Devices) B083J7DYDT: Keyboard & Mouse Sets: Amazon.com.au
Logitech Wireless USB PC Nano Receiver C-U0007 Dongle Adapter for Mouse | eBay
Logitech NANO RECEIVER disassembly and connection problem Fix - YouTube
Logitech Unifying Receiver for Connecting Multiple Devices