Amazon.com: Logitech C-U0007 Unifying Receiver for Mouse and Keyboard Works with Any Logitech Product That Display The Unifying Logo (Orange Star, Connects up to 6 Devices) (C-U0007) : Electronics
Wireless Dongle Receiver Unifying Usb Adapter For Logitech Mouse Keyboard Connect 6 Device For Mx M905 M510 Keyboard K400 - Wireless Adapter - AliExpress
Can I connect Logitech M235 Mouse with Unifying receiver which comes with Logitech K230? - Quora
Fix: Logitech MX Keys Mini Not Connecting to Unifying receiver