Fix: Logitech Unifying Receiver not Working - Appuals.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 : Amazon.co.uk: Computers & Accessories
Lost USB Receiver for Wireless Mouse: Here's what to do - Spacehop