Just what we need, mirror your lightning connector apple device on an hdmi equipped screen. A lightning port on the adaptor allows you to charge/power your device while you see it on your big screen. Maybe surfing which beats any pc for size! Very handy adaptor in my opinion. Of course, you could mirror your device with an Apple TV device but this cable adaptor saves connecting to the network and of course, can easily be used on a friend's TV (simply connect to an hdmi socket, need an hdmi cable of course) to show pictures etc.