On the one hand, the poor RJ45 connector is not easy to be clamped, on the other hand, the copper sheet is easy to disconnect from the network cable.
Identification method:
At first glance, look at the color of the RJ45 plug, the color of the high-quality crystal head is clear and clear, no variegated, no stray particles;
Secondly, look at the thickness of the crystal head, the high-quality crystal head is thicker and uniform than the inferior crystal head, and the edges and corners are distinct;
Three smells, smell the crystal head, high-quality crystal head has no odor, no peculiar smell, no strange smell, no smell;
Four pressures, the elasticity of the crystal head is pressed, the high-quality crystal head is flexible, and the inferior crystal head is weak;
Five, the sound of the crystal head, the high-quality crystal head sounds crisp, and the catch behind it is even more obvious.
In fact, the quality of the network cable and the network head cannot be ignored. When the quality of the network cable is not good, signal interruption is prone to occur.