Logitech Unifying Receiver 1-6 Devices USB Dongle for Wireless Keyboard MouseのeBay公認海外通販|セカイモン
Wireless Dongle Receiver Unifying USB Adapter for Logitech Mouse Keyboard Connect 6 Device for MX M545 M590 M720 M510 MK365 MK520 etc Adapter (with retail box) | Lazada Singapore
USB Unifying Receiver for Logitech Mouse and Keyboard 73257010740 | eBay
How to Connect a Logitech Wireless Mouse to a Unifying Receiver
Amazon.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 : Electronics