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 Unifying Receiver for Connecting Multiple Devices
Logitech M510 Wireless Mouse with Laser-grade Tracking
What can someone do if they've lost the wireless USB connector to their Logitech keyboard and mouse? - Quora
Original Usb Receiver Bluetooth-compatible Signal Receiver Adapter For Logitech G Pro X Superlight Wireless Mouse Adapter - Mice & Keyboards Accessories - AliExpress
Wireless Dongle Receiver Unifying USB Adapter for logitech Mouse Keyboard Connect 6 Device for MX M905 M950 M505 M510 M525 Etc|Mice| - AliExpress
Logitech Unifying receiver - Wikipedia
Logitech Bluetooth Audio Receiver for Wireless Streaming