K270 Wireless Keyboard, USB Unifying Receiver, Black
Logitech K270 Wireless Keyboard 820-006477 (No Mouse or USB Receiver) (Warranty) | eBay
Logitech K270 Wireless Keyboard with Unifying Receiver
Replacement Unifying Receiver for Logitech Wireless Keyboard K270 Sh | eBay
Amazon.com: New Logitech Unifying USB Receiver for keyboard K230 K250 K270 K320 K340 K350 K750 K800 : Electronics
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