Dell KB740 - Pairing your wireless keyboard; Pairing with a Dell Universal USB receiver

Pairing your wireless keyboard │ 9
Your Dell wireless keyboard can be paired with devices using USB and Bluetooth.
You can pair and switch between a laptop, desktop, and a compatible mobile device.
Pairing with a Dell Universal USB receiver
NOTE: You can connect a device to your wireless keyboard using the Dell Universal
pairing.
1. Install the Dell Universal USB receiver to the USB port on your computer.
Pairing your wireless keyboard
Laptop Desktop
2. The connection-mode light on the keyboard is set to Dell Universal Pairing by default.
NOTE: The RF device is already paired at the factory.