When it comes to connecting displays or projectors to video and data sources, nothing beats a good cable for reliability. But does this mean wireless connectivity should be ignored? Not really.
Why should I use cables?
When installing a system including a projector, television or digital display, it is always recommended to install good quality cables, regardless of whether you plan to use wireless connectivity or not.
Good cables provide a reliable signal without lag; they don't suffer as much with intereference, they can be hidden from view for the most part and they don't require any special setting up when connecting any new device.
If you choose to use a wireless connection, cables are still a good backup in case something goes wrong or a new device is not compatible with your equipment.