How to distinguish between Mac computer's video interface and lightning interface?

The use of the Apple Computer TX is known, in the Mac Pro USB port, there is a flat smaller interface, and the model of different Mac its interface is not the same, one is the Mini DisplayPort interface for video dedicated channel, and the other is the Thunderbolt interface, For the data transfer channel. But the two look very similar, which is easy to cause trouble to users, so that the purchase of the wrong equipment, bought only to find that the original can not be used.

Here, teach you a recognition method: Two interface, there is an icon hint, but the icon is too small, need to carefully observe, which like a TV icon for the Mini DisplayPort interface, like lightning as the icon for the Thunderbolt interface, you can look at the next picture Oh.

After the identification, you need to buy the device Mac users, will not choose the wrong.