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
Amazon.com: Logitech USB Unifying Receiver - Black : Electronics
Genuine Logitech Unifying Mirco Dongle Receiver USB for Keyboard K400rK400plus | eBay
Logitech Unifying-Empfänger: Mehrere Geräte parallel anschließen - schieb.de
Logitech Unifying receiver - Wikipedia
Logitech Pico USB Unifying Receiver-1 Funk, USB Funk-Empfänger Schwarz kaufen