Amazon.com: Logitech 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
Logitech C-uak42 CUAK42 Genuine Wireless Mini Receiver USB for sale online | eBay
Logitech C-UV35 USB Bluetooth Receiver for Mouse Keyboard MX5000 MX5500 | eBay
Logitech Unifying Receiver for Connecting Multiple Devices
New Arrival C-uak42 Usb Mini Receiver For Logitech Mx3000 Mx3200 Lx710 Wave S510 Lx300 Ex100 V22 Mouse - Pc Hardware Cables & Adapters - AliExpress
Logitech C-UV35 USB Bluetooth Receiver for Mouse Keyboard MX5000 MX5500 | eBay
Amazon.com: Logitech 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