I'm sick of old stuff you can't but anymore on this sub! I bought this Logitech k400r about 10 years ago and no matter how much I abuse and/or neglect it, it
I had to install driver for K400R wireless keyboard/Mousepad. With Windows 11 - Peripherals - Linus Tech Tips
Logitech Wireless Keyboard Driver for Windows 10 Download Easily - Driver Easy
How to Connect Logitech Wireless Keyboard - Driver Easy
Wireless Dongle Receiver Unifying Usb Adapter For Logitech Mouse Keyboard Connect 6 Device For Mx M905 M510 M505 Keyboard K400 - Wireless Adapter - AliExpress
Cradle for Logitech K400R Keyboard | Precision Mounting Technologies Ltd.
I had to install driver for K400R wireless keyboard/Mousepad. With Windows 11 - Peripherals - Linus Tech Tips
Amazon.com: Logitech Wireless Touch Keyboard k400 with Built-in Multi-Touch Touchpad - White : Electronics