In addition to purchasing necessary network cables, modules, panels, etc., the crystal head is also a necessity for home decoration and wiring. Even if the network cable is gigabit network cable or 10 gigabit network cable, but the crystal head is not selected properly, it will directly affect the network speed.So it is also very important to choose the crystal head. How to distinguish the quality of the crystal head?Let's have a look!1、 How to choose crystal head?1. See the network cable type.Select the crystal head matching the cable type.For example, for Category 5 network cable, select Category 5 crystal head, for Category 6 network cable, select Category 6 crystal head, and for Category 7 network cable, select Category 7 special crystal head.Especially the seven types of network cables, one Why don't I love you when you are so cute.