USB Unifying Receiver for Logitech Mouse and Keyboard | eBay
Amazon.com: Logitech M705 Marathon Wireless Mouse – Long 3 Year Battery Life Ergonomic Sculpted Right-Hand Shape Hyper-Fast Scrolling and USB Unifying Receiver for Computers and laptops Dark Gray (Discontinued by Manufacturer) :
Wireless Dongle Receiver Unifying Usb Adapter For Logitech Pc Mouse Keyboard - Cable Winder - AliExpress
Logitech Unifying Receiver for Connecting Multiple Devices
Logitech Compact Wireless Mouse, 2.4 GHz with USB Unifying Receiver, Optical Tracking, Blue - Walmart.com
Logitech Unifying Receiver for Connecting Multiple Devices
Logitech M325 Wireless Mouse, 2.4 GHz with USB Unifying Receiver, 1000 DPI Optical Tracking, 18-Month Life Battery, PC / Mac / Laptop / Chromebook (Black)