Amazon.com: Logitech USB Unifying Receiver - 2 Pack For Personal Computer : Electronics
Logitech USB Unifying Receiver Dongle for Mouse & Keyboard 910-005235 - Walmart.com
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 Unifying Receiver 1 to 6 Devices USB Dongle for Wireless Keyboard Mouse for sale online | eBay
Logitech Unifying Receiver for Connecting Multiple Devices