Logitech Unifying Receiver for Connecting Multiple Devices
Amazon.com: Logitech 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 USB Receiver 993-000439
Usb Receiver Wireless Dongle Adapter Compatible- For Logitech G Pro G903 G403 Mouse Adapter-size:gpw | Fruugo UK
Logitech USB Unifying Receiver - Black : Amazon.co.uk: Computers & Accessories
Original Logitech Unifying Mirco Dongle Empfänger USB für Tastatur K400rK400plus | eBay