Wireless Dongle Receiver Unifying USB Adapter for logitech Mouse Keyboard Connect 6 Device for MX M905 M950 M505 M510 M525 Etc _ - AliExpress Mobile
Logitech Unifying Receiver for Connecting Multiple Devices
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
Is there a separate dongle for keyboard and mouse each or does 1 dongle work for both? - Quora
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
Wireless Dongle Receiver USB Adapter for Logitech Mouse Keyboard Connect | eBay