Purchasing a replacement USB receiver – Logitech Support + Download

Plug it. Forget it. Add to it. The tiny Logitech Unifying receiver stays in your notebook, so there's no need to unplug it when you move around. Connects up to six Unifying devices to your computer so you can easily add a compatible mouse or keyboard – without the hassle of multiple USB receivers. Advanced 2.4 GHz wireless technology provides a powerful, reliable connection up to 33 feet (10 meters) away with virtually no delays or dropouts.

Logitech - USB Unifying Receiver

Logitech Dongle Replacement

Why you should really, really update your Logitech wireless dongle - The Verge

USB Dongle Receiver for Logitech GPRO X Wireless Gaming Headset USB Adapter

USB Receiver Replacement For Logitech MK270 MK345 Wireless Mouse Keyboard Combo Repair parts Accessories - AliExpress

Buy Logitech USB Unifying Receiver - 2 Pack For Personal Computer: Network Adapters - ✓ FREE DELIVERY possible on eligible purchases

Logitech USB Unifying Receiver - 2 Pack For Personal Computer

How To Reconnect Your Wireless Logitech Mouse

New Logitech Unifying USB Receiver for M905.M600.M525.Mouse.&.K350.K750.Keyboard

Lost your Dongle? - Bangkok Patana School