Logitech Unifying Receiver for Connecting Multiple Devices
Logitech Mx5500 Wireless Keyboard And Mouse Combo Usb Receiver - Keyboard Mouse Combos - AliExpress
Logitech M705 Marathon Wireless Mouse, 2.4 GHz USB Unifying Receiver, 1000 DPI, 5-Programmable Buttons, Black - Zerbee
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
Configure PC w/ Logitech Cordless Desktop MX5500
Logitech Wireless Combo MK750 Keyboard and Laser Mouse, Black (920-005002)