Amazon.com: 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 : Electronics
Logitech MX Mechanical Full size Wireless Mechanical Tactile Switch Keyboard for Windows/macOS with Backlit Keys Graphite 920-010547 - Best Buy
Logitech K750 Wireless Solar Keyboard for Windows, 2.4GHz Wireless with USB Unifying Receiver, Ultra-Thin, Compatible with PC, Laptop
List of Logitech products - Wikipedia
Solved: XPS8940 Logitech Unifying USB receiver cannot be detected - Dell Community