Logitech Unifying Receiver for Connecting Multiple Devices
Logitech Unifying USB Receiver for Wireless Mouse and Keyboard, 6-Device (910-005235) | Quill.com
Logitech MK520 Wireless Keyboard Mouse Combo with Unifying
Genuine Logitech Unifying Receiver-Wireless Mouse/Keyboard USB Dongle-6 Devices | eBay
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 MK270 Reliable Wireless Keyboard and Mouse Combo
Zone Wireless Plus Unifying + Audio Receiver
Buy Logitech USB Unifying Receiver Connects
Amazon.com: Logitech New Unifying USB Receiver for Mouse Keyboard M515 M570 M600 N305 MK330 MK520 MK710 MK605 : Electronics
Logitech Unifying Receiver for Connecting Multiple Devices
Logitech Wireless Keyboard K350 920-001996 B&H Photo Video