Turn on your MK540 keyboard and mouse. To connect the MK540 mouse and keyboard, plug the provided Unifying receiver into a USB
Turn on your MK540 keyboard and mouse. To connect the MK540 mouse and keyboard, plug the provided Unifying receiver into a USB
![Logitech K540 Wireless Keyboard Review Manual Software and Drivers for Windows and Mac - LogiSoftwareDrivers Logitech K540 Wireless Keyboard Review Manual Software and Drivers for Windows and Mac - LogiSoftwareDrivers](https://logitech-apps.com/wp-content/uploads/2019/10/k540-e1571028195640.jpg)