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
Office Depot
Logitech® USB Unifying Receiver, 2.4GHz Wireless Technology, Compatibl – ajmartpk
Logitech Unifying Software: How to Download, Fix or Add Another Device - TechTheLead
Amazon.com: Logitech USB Unifying Receiver - 2 Pack : Electronics
1pcs Wireless Dongle Receiver Unifying USB Adapter for Logitech PC Mouse Keyboard
LANGTU USB Unifying Receiver ft. 2.4 GHz Compatible with Unifying Wireless Mouses & Keyboards – LANGTU Store
Logitech USB Unifying Receiver Dongle for Mouse & Keyboard 910-005235 (5 Pack) - Walmart.com
Logitech M720 Triathlon Multi-Device Wireless Mouse, Bluetooth, USB Unifying Receiver, 1000 DPI, 8 Buttons, 2-Year Battery, Compatible with Laptop, PC, Mac, iPadOS - Black - Optical - Wireless - Bluetooth/Radio Frequency - 2.40 GHz - Black - 1 Pack - USB