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
Amazon.com: New Logitech Unifying USB Receiver for Keyboard K230 K250 K270 K320 K340 K350 K750 K800 (Renewed) : Electronics