To connect the monitor to a MacBook Air M4 in 5K resolution without loss, you need a USB-C cable that supports Thunderbolt 3 or 4, as only Thunderbolt can transfer the full 5K resolution via USB-C without loss. A normal USB-C cable without Thunderbolt is not sufficient for 5K. The monitor offers USB-C connections with 90 watts of charging power and USB hub functionality, which enables a direct connection with a suitable Thunderbolt USB-C cable.

A suitable docking station must support Thunderbolt 3 or 4 to transfer 5K at 60 Hz. Normal USB-C docks without Thunderbolt cannot guarantee the full 5K resolution.

The monitor has an integrated USB hub, but does not have its own network connection (LAN). You can therefore not connect a network cable directly to the monitor to use it for the MacBook Air M4. For network connections, you must connect the MacBook Air directly or via a separate docking station with a LAN connection.

To summarise:
- Use a Thunderbolt 3/4 USB-C cable for 5K at 60 Hz without loss.
- A docking station must support Thunderbolt 3/4 to ensure 5K.
- Direct LAN connection on the monitor is not available, network cable on the monitor does not work as a network bridge for the MacBook Air.