Logitech K400 Plus did not come with a USB dongle? Wait!! It's hidden in the box!! | THINKBOX
Logitech Wireless Touch Keyboard K400 Plus (Unboxing) - YouTube
Logitech K400 Plus Keyboard 2.4G Wireless Keyboard Gaming Laptop PC Gamer Ergonomics Touchpad Mini Unifying Receiver
Logitech K400 Plus Touchpad Keyboard for TV connected PC
Logitech K400 Plus Wireless Touch Keyboard | Dell USA
Logitech K400 Plus Wireless Touch Keyboard | Dell USA
Logitech K400 Plus TKL Wireless Membrane Keyboard for PC/TV/Laptop/Tablet with Built-in Touchpad Black 920-007119 - Best Buy
Logitech K400 Plus Keyboard 2.4G Wireless Keyboard Gaming Laptop PC Gamer Ergonomics Touchpad Mini Unifying Receiver
Logitech USB Unifying Receiver Dongle for Mouse & Keyboard 910-005235 (10 Pack) - Walmart.com
Logitech K400 Plus Touch Wireless Keyboard White | Techinn
Logitech K400 Plus Touchpad Keyboard for TV connected PC
Logitech Unifying receiver - Wikipedia
Wireless Dongle Receiver Unifying Usb Adapter For Logitech Mouse Keyboard Connect 6 Device For Mx M905 M510 Keyboard K400 - Wireless Adapter - AliExpress
Logitech K400 Plus Wireless Touch TV Keyboard With Easy Media Control and Built-in Touchpad, HTPC Keyboard for PC-connected TV, Windows, Android, Chrome OS, Laptop, Tablet - Black Keyboards - Newegg.com
Logitech K400 Plus Wireless Touch Keyboard - German Layout - White - Walmart.com
Original Logitech Keyboard K400r K400plus Unifying Mirco Dongle Receiver USB | eBay
Logitech K400 Plus Touchpad Wireless Keyboard Black - Usb Wireless Connectivity - On/off Power Switch - 2.40 Ghz Operating Frequency : Target