Logitech K350 Black Wave Unifying Wireless Keyboard and USB Receiver Dongle 97855648679 | eBay
Logitech K350 Wireless Keyboard + USB Receiver Used In Original Box 790304485701 | eBay
Logitech K350 Wireless Wave Keyboard with Palm Rest
SOLVED: USB for wireless Logitech keyboard lost. - Logitech Harmony Smart Keyboard - iFixit
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
Can I connect a Logitech keyboard without a receiver? - Quora