Logitech Unifying Receiver for Connecting Multiple Devices
How to Connect Logitech Wireless Keyboard - Driver Easy
Logitech K270 Wireless Keyboard with Unifying Receiver
Logitech K260 Wireless Mouse and Keyboard review - YouTube
Amazon.com: New Logitech Unifying USB Receiver for keyboard K230 K250 K270 K320 K340 K350 K750 K800 : Electronics
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