Logitech Wireless USB Mini Receiver C-UAK42 831842-0000 LZ90728 | #1791446509
Logitech SecureConnect C-UAL52 Wireless Mini USB Receiver 831843-0000 | eBay
Logitech Mini Receiver C-UAK42 Wireless Keyboard/Mouse USB Receiver Dongle - Ryan & Troy Tech Solutions
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
Logitech Unifying Receiver for Connecting Multiple Devices
Amazon.com: Logitech Wireless USB Nano PC Receiver Cu0010 Dongle C-11077 Adapter for Keyboard and Mouse, Non-Unifying 993-001106 : Electronics