How To Connect Wireless Keyboard Without Receiver?
How to Pair Mouse & Keyboard with Logitech Unifying Receiver
How to Connect Wireless Keyboard Without USB Receiver
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
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Amazon.com: Logitech MX Keys Mini Keyboard and Lift Vertical Ergonomic Mouse Combo - Wireless, Backlit Keys, Bluetooth or Logi Bolt USB receiver, Quiet, Windows/macOS/iPadOS, Laptop, PC - Pale Grey : Everything Else
How to Connect Logitech Wireless Keyboard - Driver Easy