Logitech Unifying Receiver for Connecting Multiple Devices
Genuine OEM Logitech Non-Unifying Nano Receiver USB Dongle (C-U0010) C | eBay
Genuine OEM Logitech Non-Unifying Nano Receiver USB Dongle (C-U0010) C | eBay
Amazon.com: Logitech Wireless USB Nano PC Receiver Cu0010 Dongle C-11077 Adapter for Keyboard and Mouse, Non-Unifying 993-001106 (Renewed) : Electronics
Logitech C-U0008 Unifying Receiver for Mouse and Keyboard - Black | eBay