for Logitech Unifying USB Receiver Mouse and Keyboard 2.4 GHz Wireless Technology, USB Plug for Logitech Unifying Devices like W - AliExpress
Logitech K750 Wireless Solar Keyboard for Windows, 2.4GHz Wireless with USB Unifying Receiver, Ultra-Thin, Compatible with PC, Laptop - Black - Newegg.com
How to pair more than one device with a Logitech receiver
Raspberry PI + Google TV (Logitech Revue) keyboard (Logitech K700) | by Madhan Sundaram | Medium
Logitech K780 Multi Device Wireless Keyboard Bluetooth w/ USB Unifying Receiver | eBay
Logitech K270 Keyboard - Walmart.com
Amazon.com: Logitech 920003051 K270 Wireless Keyboard, USB Unifying Receiver, Black : Electronics
Logitech® K350 Wireless Keyboard, USB Unifying Receiver, Black LOG920001996
Logitech MK520 Wireless Keyboard Mouse Combo with Unifying