Logitech K360 Compact Wireless Keyboard for Windows, 2.4GHz Wireless, USB Unifying Receiver, 12 F-Keys, 3-Year Battery Life, Compatible with PC, Laptop (Glossy Black) - Wireless Connectivity - RF - 33 ft -
Logitech K750 Wireless Solar Keyboard for Windows, 2.4GHz Wireless with USB Unifying Receiver, Ultra-Thin, Compatible with PC, Laptop - Wireless Connectivity - RF - 33 ft - 2.40 GHz - USB Interface - English (Canada) - Computer - PC - Black
Logitech USB Unifying Receiver, Black | OfficeSupply.com
Logitech Unifying Usb Receiver Dongle 6 Devices Performance Keyboard Mouse New - Instrument Parts & Accessories - AliExpress
Logitech Unifying Receiver for Connecting Multiple Devices
Wireless Dongle Receiver Unifying Usb Adapter For Logitech Mouse Keyboard Connect 6 Device For Mx M905 M950 M505 M510 M525 Etc - Mice & Keyboards Accessories - AliExpress
Logitech Unifying Vs Non-Unifying Receiver (software in description) - YouTube
Logitech M325 Wireless Mouse, 2.4 GHz with USB Unifying Receiver, 1000 DPI Optical Tracking, 18-Month Life Battery, PC / Mac / Laptop / Chromebook (NEW BLUE) - Optical - Wireless - Radio
Amazon.com: Logitech C-U0007 Unifying Receiver for Mouse and Keyboard Works with Any Logitech Product That Display The Unifying Logo (Orange Star, Connects up to 6 Devices) (C-U0007) : Electronics
Logitech K270 Wireless Keyboard, USB Unifying Receiver, Black | OfficeSupply.com